Dyson Pure Cool TP04 Review

In this Dyson Pure Cool TP04 review, I’ll show you whether this nice-looking Dyson air purifier-fan combo is a deal that’s worth a closer look. 

First off, it’s an air quality sensor. It quantifies the air pollution in the room and calculates a detailed, easy-to-read air quality report for you.

Also, it’s a portable room air purifier. If the air quality is bad, the machine automatically gets into gear and clears the air. But you’ll need to leave it running on auto mode if you want hands-off operation. 

In addition, it’s a room cooling fan. Well, it’s not the most powerful fan I’ve seen, but it delivers. It offers as much fan-power as 50% of what a box fan does. Not spectacular, really. But it’s acceptable. 


*Affiliate Links Disclosure


This website participates in the Amazon Associates program. And as an Amazon Associate, I earn from qualifying purchases. However, you won’t pay a dime more for clicking on any of the affiliate links in this content.



It’s a purifier-fan combo that pushes out a soft breeze of clean air that also cools you as you listen to some soothing music. To accomplish that, it leverages Dyson’s famous Air Multiplier Technology.


TP04 Review
The Dyson pure Cool TP04 stands tall among the best air purifiers for allergy relief ever released.



But that’s not all.

The Dyson TP04 is Amazon Alexa-enabled. Tell it what to do, and it’ll obey your commands. In addition, it’s Wi-Fi and Bluetooth enabled. It’s the quintessential smart option. You can control the thing when you’re not in the room. And you won’t need to use the included remote. You can effortlessly operate the unit using the easy-to-connect Dyson Link App from the comfort of your couch. 

Plus, it looks cute. You won’t ever want to “hide it.” It speaks volumes about you and your values. It subtly announces to visitors that you love having the coolest things in life. That’s why you’re always out there working, building your career or business. You need elegant additions in your indoor spaces. Additions that deliver loads of value while reminding you that you need to work even harder and smarter, like they do. 

Lastly but most important, the TP04 is a great choice for allergies and asthma sufferers. In fact, it’s certified as an asthma and allergy-friendly device. With this option, allergy season ceases to be such a terrifying prospect.

Want to read Dyson TP04 user reviews on amazon? Why not. 


Allergies suck
Allergies are among the nastiest experiences in the world. They make life feel like hell on Earth. With the Dyson TP04,though, life feels a whole lot different: it feels healthier, cleaner, and happier.


With this Dyson, the tobacco or marijuana smoke that wafts from your neighbor’s apartment bothers you much less. Also, if you live in a state that sees wildfires frequently, you’ll love this thing.

And there’s a digital display that shows you at least 6 air quality reports. The thing measures your room’s temperature, relative humidity, PM10, PM2.5, NO2, and VOCs. The unit takes into account all these air quality components and calculates an overall real-time report. More on this down the road. 

What’s not to like about the Dyson TP04?

Very little.

The only gripe I have is that it’s expensive. Be ready to part with $500+ if you want this machine. But I’ve seen devices that cost under $300 that purify a much larger area than Dyson’s max range of 290 sq. ft. Take the Medify MA-40, for example. It cleans about 400 square feet 4 times in an hour, yet it costs under $300. And you know what, the Medify MA-40 (Home Medical Grade H13 True HEPA for 800 Sq. Ft.) handles particles whose diameter hovers around the 0.1 micron range.

But is the TP04 worthy its hefty price? Read this Dyson Pure Cool TP04 Review to find out.


Don’t have much time? Here’s a table with Dyson TP04’s fast facts:


[table id=4 /]

Now that we’ve got that out of the way, let’s dive right into the Dyson Pure Cool TP04 review. 


Does the Dyson TP04 Actually Purify and Cool the Air?



Dyson Pure Cool, TP04 – HEPA Air Purifier and Tower Fan, White/Silver


Yes, it does.

It certainly helps with allergies. Its 360-degree improved True HEPA enables you to get rid of at least 99.97% of 0.3 micron particles. I’m talking of allergens as tree pollen, grass pollen, bacteria, dust bunnies, mold spores, and many others.

The double-layered activated carbon filter chips in and reduces offensive odors including MJ, tobacco smoke, and other VOCs.

Want to know whether this air purifier removes VOCs? Start cooking something in the kitchen. You’ll hear the thing switch to a higher fan speed to address the particle invasion.

The same goes for when you fa*t. I’m sure that doesn’t happen the whole time, though. I mean, you don’t want to keep replacing the filters. They’re pricey. By the way, here’s how the filters look like: 

Dyson 360 degree replacement filter for TP04/ HP04/DP04


As someone who uses this fan, I can confidently say that my TP04 wasn’t money poured down the drain.

My Dyson  sits in my son’s rather small bedroom (13 X 12 feet). And if he doesn’t sleep like a log every night, it’s not because the air purifier isn’t working. Or because it’s producing too much noise.

Since we bought this Dyson, spring has ceased to be such a dreadful prospect for him.

It’s a 3-in-1 Deal


The Dyson TP04 combines three appliances into one superior quality product. The item is a fan, an air cleaner, and an air quality sensor , all at the same time. How cool is that?

It keeps your room cool during summer because it’s a fan. And in the winter, you can choose to run the purification side and forget the fan for a couple weeks. Or you can reverse the airflow and use both functions together. It’s hard to think of this air purifier without thinking of how flexible it is. 

Before we continue any further, let’s take a glance at the pros and cons of this air purifier. 



  • Adds elegance to a room
  • 3 appliances in one
  • Easy to use
  • Auto off timer
  • Powerful Air Multiplier Technology
  • Filters down to 0.1 microns: Ideal for allergy and asthma sufferers
  • Safe
  • Real-time detailed air quality data
  • Portable
  • Dyson Link app for max convenience 
  • Gentle airflow from the fan
  • Runs quietly on pretty much all settings
  • Airflow reversal, the perfect wintertime option
  • Compatible with Alexa, Wi-Fi & Bluetooth
  • Replacement filters affordable




  • Easy to tip over
  • Expensive 
  • Bulk
  • Too much information
  • Device’s fan is great rather than excellent
  • No CADR ratings 
  • Software glitches not uncommon



  • Dimensions: 4.60 X 8.78 X 41.50 inches (Diameter X Width X Height)
  • Model: TP04
  • Wight: 10.89 lbs
  • Cord length: 6.05 feet
  • Max coverage: 290 sq. ft. 
  • Improved True HEPA filter
  • Activated carbon filter
  • Accurate air quality sensors
  • Air Multiplier Technology
  • Works with Amazon’s Alexa
  • Wi-Fi and Bluetooth enabled
  • Auto shutoff
  • LCD display
  • Dyson Link app
  • Remote control
  • Oscillations: 45, 90, 180, and 350 degrees
  • 10 fan speed settings
  • 2-year warranty
  • Certified Asthma and Allergy friendly


Unboxing the Dyson TP04 Air Purifier


The Dyson TP04 air purifier features a slender, tall design. Do you agree that tall, slender people look stunning? I didn’t know this was true of fans as well until I saw my Dyson. It’s easy on the eye. And it greatly enhances the overall look of your room pretty much like your fancy lampshade does.

The Dyson TP04 is the kind of device visitors notice immediately upon entering a home. It says to all, “The person who owns me loves the finer things in life.”

But while some parts may seem metallic, this device is made of mainly plastic. In fact, the unit does seem flimsy. And its tower design makes it easy to knock it over. Yes, Dyson engineers say they’ve dropped this unit repeatedly from high points and it’s remained intact. But I’d advise you to keep it out of the way. 


What’s in the box:


1. Dyson TP04 purifier/fan


3.Power cable (6 feet long)



Setting Up the Dyson TP04


Setting my Dyson up was super easy. The device’s filter comprises 4 filters. The outer part of the unit’s 360-degree filter contains 2 improved True HEPA filters. I’ve explained what this filter does for you above. 

The inner part of the filter boasts a 2-layered activated carbon filter. Since it’s odor-removal filters as opposed to just 1, I expected the TP04 to demonstrate above average performance. And it didn’t disappoint. I’ve reviewed over 30 air purifiers as of this writing. And I can tell you not many air purifiers are excellent smell eliminators.  I think
this Dyson deserves an A (not A+) when it comes to reducing VOCs and odors. 


How to Fit the Filters onto the TP04

TP04 filters
The outer layer is the HEPA filter while the inner one is the Activated Carbon filter.


Fitting the filters around the fan’s base was pretty easy. You won’t need help. 

I took the device out of the box and assembled in under 1 minute. It was a matter of snapping the 2 semi-circular filter parts into place. 

First, I got the filters out of the plastic packaging. Next, I grabbed the double-layered activated filter and clicked it into place around the unit’s vertical core

Then, I picked the Two-in-one HEPA filters and fit them into the meshlike cover (the shroud). Well, that can be a little tricky if you don’t what I’m about to say. The shroud comes with two holes, one at the top and the other at the bottom.

I checked the HEPA filter, and it had protrusions of sorts that perfectly coincided with the shroud’s holes. I simply inserted the 2 protrusions into the holes and then snapped the entire set into place over the activated charcoal filter. The pieces fit perfectly well.

Finally, I sat the product on the floor of my bedroom and plugged it in. Then, I fired it up, and the thing roared into life, indicating that my room’s air quality was good. It said good, and I thought: Does this thing even work? 

My wife was prepping a meal in the kitchen. And as usual, the strong burning onion smell permeated the whole house. That’s when I saw real action from this purifier. I tested it in the living room first before finally taking it to my son’s bedroom. Almost immediately, the digital display showed Red, which means  “Very Poor.”

At that point, the sensor ramped up fan speed, and the noise grew louder. That’s when I learned that the machine actually works. It continued running at that speed for about 30 minutes, obliterating every trace of the cooking smells in the kitchen and living room.

Note: the TP04 isn’t a whole-house air purifier. To clean every nook and cranny of your home, you’ll probably need to place a Dyson in each room.

How to Replace the Filters for TP04? 

Simply press each of the two side buttons, and the pull the filters away from the base. It’s that easy. Takes a second. As to replacement, follow the exact same process as above (see how to fit the filters on the machine above). 


Thanks to this Dyson………


My Son’s Asthma Symptoms Have Noticeably Improved


Frankly, I’ve not evaluated this device’s efficacy using scientific methods. But judging from what I’ve seen and the reports I’m getting, I’d say the Dyson Pure Cool TP04 air purifier works.

I have evidence that the Dyson I bought wasn’t money flushed down the drain. I have real-time graphs and other data on my Dyson Link app that proclaim the product’s potency. Second, I have what I’ll call “anecdotal evidence.”I mean, my son has consistently slept better ever since I bought him the Dyson. He keeps telling me how much he loves his Dyson.

He’s 14 as of this writing, a small lovely boy. Sadly, he’s asthmatic.

Before I bought him this air purifier as a birthday gift mid-2018, his life was awful. He’d sniffle so bad especially when allergy season rolled in.

Of course, he took meds. But they weren’t doing much good for him.  Sometimes, his symptoms deteriorated so bad I thought we’d lose him. Well, I can’t say his Dyson air purifier saved him, but it sure did help.

And yes, my son still battles his seasonal allergies. However, his symptoms no longer subdue him. And his life is much happier overall. 

My boy may not care much about the numbers displayed on his device’s digital screen. All that matters to him is that breathing has stopped being such an unpleasant experience.



The Unit is Asthma and Allergy Certified


This air cleaner has been repeated tested and proven to be capable of helping asthma and allergy sufferers. The Asthma and Allergy Foundation of America agrees that this device may offer offer allergy relief. 

The Asthma and Allergy Foundation of America (AAFA) together with Allergy Standards Limited test air purifiers for their ability to help allergy and asthma sufferers. Their standards are pretty high. An air purifier that gets the asthma and allergy friendly certification mark is purposely designed to provide relief from the symptoms.

Luckily, the TP04 has earned this important certification. If you had any doubts as to whether this unit helps with asthma and allergies, stop entertaining those thoughts. Instead, take action. Take a step forward and gift yourself or a loved one this useful air purifier.  


Features and Benefits


Let’s consider each of the features I mentioned above one by one and see where that leaves us.

The thing weighs juts 10.89 lbs. That means it’s light and Portable. It’s very easy to move it between rooms where its services are needed most. But due to its being light and very tall, it’s quite to tip it over and probably damage it.  

Due to its light weight and its rather tall design, knocking it over is easy. Better be careful as you walk around the house. 

That said, the material used to make it are very tough. It’s unlikely to get damaged in the event you tipped it over  as you shuffle around the house. But you don’t want the air purifier to fall on your child or pet. So, keep out of the way. 

Thanks to its 360-degree air intake, you have a whole range of location options. Place it against a wall, and it’ll still be effective. Or place it behind the main door. Or if you have a large living room, place it right in the middle of the room. Just make sure you or other occupants aren’t always felling it. 

1. Improved 360-Degree HEPA Filters


The unit comes with 2 360-degree HEPA filters manufactured using fiberglass. These filters should remove (and do) 99.95% of particulate matter 0.1 microns or larger. That’s something every asthma and allergy sufferer should note down.

The best air purifier for such a person is one that filters out the smallest particles possible. Most True HEPA filters remove 99.97% of 0.3-micron particles. Remember: the smaller the particles, the more potentially harmful they are. Can you see why 99.95% of 0.1-micron particles is much better filtration than 99.97% of 0.3-micron particles? 

With this option, you’ll stop worrying about most PM10 and PM2.5 particles. You will stop fretting about contamination from household dust, pollen, mold spores, and pet dander.

PM10 are course particles whose diameter ranges from 2.5 microns to 10 microns. Luckily, human lungs are able to deal with most PM10 particles. Your Dyson should easily handle the rest of these particles, that is, PM2.5.

This is the feature that makes the TP04 stand out from the air purifier crowd. It performs excellently, getting rid of tons of allergens so you can breathe easier. As noted above, the machine is asthma and allergy friendly. 

2 Activated Carbon Filters


Let’s talk about the unit’s efficacy in terms of removing PM2.5. These particles are very small, they have a diameter that’s smaller than 2.5 microns. Owing to their size, these particles can enter the bloodstream and cause serious health issues. It’s been found that PM2.5 particulates are way more dangerous than PM10 particles because they’re tinier. 

Some of the possible health conditions include heart attacks, heart disease, asthma, decreased lung efficiency, lung irritation, difficulty breathing.

It gets worse.

Research reveals that PM2.5  may cause premature death. Did you know air pollution kills 7,000,000+ humans each year? Blame PM2.5 for this terrifying state of affairs. 

But does the Dyson TP04 remove these harmful PM2.5  particles? Yes, it does. Well, it may not remove everything, but it does a great job.

The fan’s activated carbon filters  (and ACFs in general) is designed to handle PM2.5 particles. These microscopic particles include household odors, VOCs (Volatile Organic Compounds), and various gaseous particles. In general, HEPA filters aren’t good with gaseous pollutants. Their job is to handle particulate PM2.5 and PM10. But with the ACFs, you’ll stop worrying about PM2.5. 

Actually, this Dyson is significantly better than many I’ve reviewed when it comes to removing smoke, NO2, VOCs, and other PM2.5 particles.  Many Dyson users from places with frequent wildfires keep praising this device for its highly effective smoke removal ability.

The TP04 would also be a great solution to car exhaust fumes. Exhaust fumes contain tons of NO2 and other oxides. These fumes also contain benzene and other VOCs. If you live by a freeway, stop worrying. Instead, buy the TP04. Or grab any of these air purifiers for exhaust fumes


How Long Do TP04 Filters Last? 


These filters are supposed to last 12 months. Now, there are 2 assumptions here. The first one is that you’ll operate the machine on auto. The second one is that you won’t run the unit for more than 12 hours each day. 

My son’s Dyson works almost 24/7 since he has asthma. And the filter lasts about 6 months. I guess it’d last a year if it weren’t humming the whole time. 

Most air purifiers, including a few that use obscenely expensive filters, use filters that last no more than 6 months. If you’re not asthmatic and aren’t allergic to allergens, you’re looking at about $60 each year on filter replacement. That’d be the maintenance cost assuming you’ll replace the filters only once a year. It’s fair to say that TP04 filters outlast most.   

3. Airflow Reversal


The TP04 normally releases purified air through the front. And that’s ok. It’s ok as long as it’s not wintertime. But would you want to have the fan spewing out blast after blast of cold air into the room? Neither would I. 

Luckily, there’s one awesome feature about the machine. That is, its ability for airflow reversal. Simply select the device’s backward airflow mode. If you do that, you can leave the fan running even during the coolest months without compromising on comfort. Instead of cool air flowing out through the front, it leaves the device through the back. 


4. Air Quality Sensor


The unit comes with a set of air quality sensors. These sensors are remarkably accurate. Under the section “Digital Display,” we’ll discuss the various air pollution events these sensors help monitor.

When I crank up my Dyson, the sensors immediately get down to work. They record air quality numbers throughout the time the device is running. And I get real-time reports on what’s happening in the room. 

I’ve noted an interesting thing that happens whenever  I open the door at night to go check on my son. Almost always, there’s a spike in PM 2.5 and PM10 particulate pollution. I’ve also noted that mowing the lawn causes a movement in the air quality numbers. That shows just how sensitive the sensors really are.

Upon consulting the Dyson Link app, I can see what my machine has been doing. Unfortunately, I can’t dig into detailed reports for individual pollutants. For example, I can’t drill down into VOC’s numbers and see how they’ve been shifting.

The app keeps saying I need a firmware update. Surprisingly, though, I can’t access the info I seek despite having updated the firmware. Hopefully, that’s not bugs. Maybe they’re working on an update that’ll make examination of detailed individual reports possible. But at least, I can see what the current VOC, NO2 situation looks like. I can also instantly know my room’s PM2.5, PM10, temperature, and relative humidity. So, I can’t say that’s a major downside. 

I decided to test my son’s Dyson about a week after installing it. And I could immediately see how dirty my indoor air quality was. I ran the TP04 for about 50 minutes at a speed of 5.


The air quality in my son’s bedroom (13 X 12 inches) improved from fair to good. The product senses a room’s level of pollution and kicks into gear to “normalize” the situation.


5. The TP04 Works Well with Amazon Alexa


The Dyson TP04 works efficiently with Amazon’s Alexa. This capability enables you to speak to your device. And that makes it easier and more convenient to use the device. The purifier-fan is also Wi-Fi and Bluetooth enabled. 

I’m yet to start using this technology (Amazon Alexa), though. I tried making it work but couldn’t. I guess that’s because I’m terrible when it comes to all things tech.

But from what I’ve gleaned while researching, you can use your mouth to do lots of stuff with Alexa. Want to adjust fan speed? Talk to your device. Want to switch the thing off or on? Simply tell it to do that. You can even ask this technology to tell you about your room’s temperature or humidity levels.  


Alexa Limitations with the Dyson TP04


However, this Alexa capability does have its limitations.

For example, you can’t control your fan’s oscillation using Alexa. Nor can you tell your air purifier to reverse the way air flows from your device. Maybe Dyson’s engineers will address the issue at some point.


Update 06/11/2019


Actually, you can now command your TP04 to oscillate. It’s just that it may not always work the first time you try it. But it works.

I also think Alexa should learn to understand more natural language. Wouldn’t be nice to be able to say to it “Alexa, turn fan speed to 5?” Currently, you can’t do that.

Instead, you have to use this phrase, “Alexa, tell Dyson to turn X.” Now, that sounds a little awkward. And it can be cumbersome. 

Also, I’d love for Dyson to build into Alexa a routine that’d combine several common commands. It’d be nice if they had a routine for the following 4  commands: 


  1. Alexa, tell Dyson to oscillate
  2. Alexa, tell Dyson to switch to night mode
  3. Alexa, tell Dyson to turn on fan
  4. Alexa, tell Dyson to turn fan speed to X


Alexa would offer a lot more convenience if it could provide a routine for these commands. Having to repeat them each night isn’t fun. 

6. The Unit Oscillates


TP04 osscillation

Use the remote or Dyson Link App to set your TP04 to one of 4 angles: 45, 90, 180, or 350. This features enables to send blasts of purified air to all corners of the room.


This air purifier-fan oscillates. The fan comes with a button that helps you choose one of 4 oscillation angles. You can pick any of these four angles: 45°, 90°, 180°, and 350°. By comparison, this Dyson’s siblings only offer one option when it comes to oscillation: 70°.

But of what use is the TP04’s oscillation feature? 

Oscillation allows you to choose which area of your room to direct clean air. As the fan rotates, it mixes and circulates clean indoor air around the entire space.


7. Automatic Shutoff


The Dyson Pure Cool TP04 also features an auto off function. This capability enables you to choose when your fan should automatically turn itself off. I set my device to shut off after 6 hours every night.

The auto shutoff timer is a pretty cool feature. I sleep without needing to wake up at some ungodly hour to turn off the machine.

8. 10 Fan Speed Settings 


How noisy or quiet is the Dyson TP04? I’ve never needed to go beyond setting 5. At this setting, the fan produces no more than 45 decibels (at 1 meter). But the noise levels may rise up to about 56 decibels on fan speed 10. Some people might say that’s pretty loud. And I agree. I don’t think a light sleeper would ever want to choose speed 10. 

The air purifier is one of the quietest devices I’ve ever seen. And that makes it great for both home and office use. If you have asthma, it’s best to run the machine on speed 10 for 60 minutes and then switch to a lower setting, say setting 5. That’s the best way to get the most out of your device without increasing your energy bills too much.
Or clogging the filters too fast. They’re expensive, remember. 

Compare this air purifier to the Honeywell HPA300 which sits in my living room. When I run the HPA300 on the turbo mode (highest speed) for an hour or so, it does get quite loud.

9. Air Multiplier Technology Delivers Efficiency and Safety


The unit’s Air Multiplier Technology enables it to circulate clean air across my son’s bedroom. And it doesn’t use the usual fast-spinning blades that regular fans use. Still, the fan manages to propel a powerful stream of unobstructed air across the room, thanks to this technology. Every corner of the room receives clean air (fast).

In addition, the device is safe to use for people with kids or pets. That’s because the fan is bladeless.


10. Digital Display


Air Quality reports
You get 6 important reports including PM2.5, PM10, VOCs, NO2, Humidity, and Temperature.

The device comes with a small, simple LCD display located near the base. It generates real-time reports and graphs so you can learn what’s happening to your air quality.

The display uses different but easy-to-understand icons to represent various air quality parameters. I get no less than 6 air quality reports. Some people might say that’s too much information. And it is.

At a glance, I can see my son’s bedroom’s AQI (Air Quality Index). This measure indicates the room’s current air quality. That may be Good, Fair, Poor, or Very Poor. Each quality level is represented by a specific color. Green for Good, Orange for Fair, Yellow for Poor, and Red for Very Poor. 

Another icon (looks like a flower) shows the level of PM10 in the room. We’re talking pollen, dust, pet dander here. Basically, pollutants smaller than 10 microns and larger than 2.5 microns.

There’s also another icon (looks like the usual search icon) that reports on the room’s amount of PM2.5.

A different icon (a car) shows how much nitrogen dioxide there’s in the room. Candles, tobacco smoke, gas stoves and many other sources release NO2. If you’re hunting around for the best air purifier for traffic pollution, give the TP04 some consideration. 

There’s yet another icon (a conical flask) that indicates VOC levels. I recently performed a simple test to see what would happen to this parameter.

I sprayed some air freshener into my son’s bedroom. As you might expect, the VOCs spiked appreciably. That’s because the product I used contained lots of particulate matter.

Fortunately, the device restored the air quality back to pre-testing levels within 2 minutes. I’d say that’s super effective. This feature can help you decide whether you should swap to less harmful home care products.

The last icon is a double-layered filter. The feature helps you know when to replace either the filters.

At night, the display dims so you can sleep peacefully. That makes the machine a great buy for light sleepers.

11. Dyson Link App for TP04


This air purifier is Wi-Fi enabled.

Thanks to Dyson’s Link app, I can access real-time air pollution reports for my son’s bedroom. Aside from that, the app allows remote control of the fan using my smartphone. Sure, data and messaging cost money. But you and I know it’s nothing the average consumer can’t afford.

The Dyson Link app would be particularly useful for someone with mobility issues. I like that one can control the device from bed or from the couch.

Note: Your smartphone or tablet needs to be Wi-Fi enabled. Additionally, your phone should be using at least iOS version 10 or Android 5 to connect seamlessly.

Some users have seen connection issues. But I suspect that’s because their phone isn’t using a compatible operating system.

More on the Dyson App later, including how to set it up. 

I almost forgot to tell you that you can actually create a weekly schedule for how your TP04 will operate. The app lets you do that very easily. 


12. Purification Coverage


Dyson’s engineers have subjected the Dyson TP04 t0 countless tests to measure its effectiveness. They’ve concluded that the device works best for rooms not larger than 290 sq. ft. That’s about 17 X 17 sq. ft, which is a relatively large room.

Of course, you can use the device to clean smaller rooms. But if your room is quite small, it’s best to get a smaller purifier.

The Honeywell HPA100 True HEPA Allergen Remover 155 sq. ft. would be a great option for a medium-sized or small room. And it’s quite affordable.  However, it lacks quite a few great features that the Dyson TP04 offers. 

13. Remote Control


The unit features a small, sleek, curved remote. I don’t use the remote, though. And I don’t worry about losing it. That’s because the remote sits balanced atop the fan through magnetic force. You’ll most likely prefer to use the Dyson Link app. But there’s no harm in having this feature. In case the app or Alexa failed completely, you’d still operate your machine without a problem, thanks to the little gadget.

14. 2-year Warranty


Dyson offers a 2-year warranty on labor and parts. Unfortunately, the warranty doesn’t include the filter. But their warranty isn’t much different from many others I’ve read. The warranty hovers around the average in the air purification industry. And while it’s not the longest, Dyson’s warranty certainly isn’t the shortest. I know quite a few companies that provide 12-month warranties. So, I have no complaints about Dyson’s warranty.


How Much Power Does Dyson TP04 Draw? 


It’s rated to consume about 40W. If you have asthma and run it for 24/7/365, it’ll gobble up roughly 350.40. At 10 cents per kWh, your annual electric bill will grow by about $35. Evidently, the TP04 isn’t a power guzzler. 


Complaints About the Dyson TP04


While the device is great and offers tons of real value, it’s not perfect. Here are a few things users of the machine have complained about. 


1. The Fan is Good, But not Excellent 


As I researched for this Dyson Pure Cool TP04 review, I came across some dissatisfied owners. One frequent complaint was that the device’s fan wasn’t any better than an ordinary fan. In fact, one person felt that the purifier was nothing more than an overpriced fan.

As someone who shelled out hundreds of dollars for this device, I didn’t know what to feel about that claim. I’d bought the unit to use as an air purifier rather than as a fan. And I must say it delivers. 

So, does the Dyson TP04 fan actually cool the air? Yes, it works, it does cool the air when you turn the fan on. But it could be  more powerful. If you’re more interested in the machine’s filtration rather than cooling ability, this shouldn’t be a dealbreaker.

However, if you’re looking for superior cooling ability, buy something else. You really don’t want to buy a fan for $500+, do you? That said, most users love the unit’s filtration efficiency and are ok with its less-than-stellar fan performance. 


2. Device Lacks CADR Numbers


Unfortunately, Dyson doesn’t avail CADR numbers. These numbers make it somewhat easy to compare different air purifiers.  It’d be nice if they started providing CADR numbers like other manufacturers do. After all, consumers are often looking devices with a high CADR. 

I can’t figure out why Dyson doesn’t submit its purifiers to AHAM for CADR testing. Could it be that the device would show a significantly lower CADR than cheaper, comparable products? Who knows.

But there’s no doubt that the TP04 works, and that it moves the air noticeably. 

 However, Dyson have provided a detailed explanation on why they don’t CADR-rate their products. And honestly, what their engineers say makes sense.

The company’s engineers have performed tons of internal testing on their purifiers. And all these tests aim to help them design machines that deliver above-average performance in real home environments. They argue that their tests focus on filtration quality rather than on CADR. 


4 Important Dyson Tests  


1.Full Grid Test


This test measures each purifier’s airflow, the airflow’s speed, and its direction. This test helps them design products that boost air circulation so no dirty air lingers in some spots in the room. 


2.  HEPA Filtration Efficiency Test


In this test, Dyson wants to know how much particulates of a particular size an air purifier removes. According to the company, the Dyson TP04 has been tested to eliminate up to 99.95 of particles whose diameter hovers around 0.1 microns.

That makes it a great PM2.5 solution. Perhaps that’s why this unit is so great at reducing VOCs and odors. It’s easy to see why this purifier passed all tests to earn the Asthma and Allergy Friendly certification. 


3. Gaseous Pollutant Test


This test primarily assesses the purifier’s ability to remove gaseous pollutants including smoke, smells, and VOCs. And according to Dyson, the unit is exceptional when it comes to odor removal. As someone who’s interacted with this unit, I can say that the thing tackles VOCs well. 


4. Acoustic Test


This test is all about sound quality analysis. As a result, the unit runs quietly on night mode while cleaning the air effectively.  


CADR Testing


Unlike Dyson’s internal testing, CADR testing is usually done in a small chamber (typically 11.8 meter squared) for about 20 minutes. It measures how quickly a device reduces particles.

But it doesn’t indicate how well the unit removes particles the first time they pass via the filter. By contrast, Dyson’s tests are more concerned about measuring a product’s actual effectiveness in a real home environment. Unfortunately for this brand, people won’t stop asking about CADR ratings. 


3. ACH Information Not Provided


For some reason, Dyson doesn’t indicate the ACH for the TP04 and other Dyson air purifiers. The ACH (Air Changes per hour) measures the number of air circulations an air cleaning device delivers in 60 minutes.

For example, a device with an ACH of 5 changes the air in the room 5 times every hour. Generally, the higher the ACH for a given square footage, the better. I’d sure love to see future Dyson portable room cleaners that show this number. 

Note: the ACH isn’t a fixed number. When a manufacturer states that the ACH of a product is 5, what do they exactly mean? They mean it’ll exchange the air in a room with a specific square footage 5 times in 1 hour.  

If you move your 290 sq. ft. Dyson TP04 in a smaller room, you should get noticeably more air exchanges in an hour. For that reason, it’s always smart to buy an air purifier designed for a larger area than the one you’re looking to treat. 

Want to learn more about CADR and ACH? Read this article: Air purifier buying guide

4. Price is Steep


The price is pretty steep, though. However, that’s expected. I fell all the added benefits do justify the unit’s over $500 price. Folks who buy Dyson products know they don’t come cheap. And they’ve accepted that fact. 


5. Software Glitches


I’ve also come across some users who say they’ve had a few software glitches . Sometimes, they say, the software takes forever to connect.  And that’s annoying. However, the issue doesn’t affect the device’s overall performance.

Also, the app keeps reminding the user it needs a firmware update. Yet, Dyson keeps saying  they’ve already done so. The app works satisfactorily, though. I’ve not had any issues with the Dyson app, fortunately. 


How to Connect Your Dyson TP04 (Any Dyson Fan) to the Dyson Link App


Step 1


Download the Dyson App.


Step 2


Select “Dyson Products” and choose “Purifier.”


Step 3


Press the power button near the base of the machine until the Wi-Fi starts blinking.


Step 4


Got to settings and connect to Dyson


Ste 5


At this point, you must enter a password. Grab the instructions manual and find the black sticker that has the password. Next, enter the password.


Step 6


Make sure you’re connected to your Dyson purifier and press “Join.”


Step 7


Go back to the app and press “Continue.” Next, name your machine. Finally, press “ready to use” and you’re done!


The app should start indicating the current air quality situation in your room. There are 4 air quality indicators namely Good (Green), Fair (Yellowish), Poor (Orange), Very Poor (Red).


How Do I Connect Additional Dyson Purifiers to the Dyson Link App?


Yes, you can link more than one Dyson air purifiers to the app. And it’s easy. Here’s what to do:


Step 1: Press and hold the On/Standby for about 5 seconds.


Step 2: Look at the Wi-Fi icon. Is it flashing green? If yes, your device is ready to connect. From here, proceed as you did when connecting the first device.

Note: your Wi-Fi should be turned on before you attempt this process.


How to Turn off Dyson Link’s Notifications


Don’t want to keep getting the Link app’s notifications? Well, turn them off.  It’s easy, and here’s how to do it.


Step 1


Open the app and tap on “Settings.”


Step 2


Currently, the notifications button is on. So, slide the button to “Off” position. You won’t see any more notifications from that point.


How to Enable and Disable Wi-Fi on Your TP04


To enable or disable the Wi-Fi, press and hold the device’s On/Off button for roughly 10-20 seconds.

Also, you can perform this action from the Dyson Link App. Nothing complicated.

But how do you know whether the Wi-Fi feature is enabled or disabled? When it’s active, the Wi-Fi symbol shows a solid white appearance.


How to Connect Your Dyson TP04 to Amazon Alexa


I assume you live in a smart home. And you’re already using the Echo (2nd Generation) – Smart speaker with Alexa. Don’t have it? You can buy it now on Amazon. It’s affordable. 

With this device, you can do a lot. You can, for example, voice-control your music. You can stream hits from Amazon music, SiriusXM, Spotify, and even Apple Music.

You can even ask Amazon’s Alexa to answer questions. Or check the weather, set alarms, or play music.

Best of all, you can use this innovative technology to control a slew of Alexa-compatible smart home devices. And that includes the Dyson TP04.

The Echo offers over 10,000 skills. These skills enable people to enjoy an unprecedented level of convenience. To get the most of these skills, ask Alexa for help. Simply say, “Alexa, help me get started with skills.”

The Echo comes with 7 microphones that enable it to listen to various voice commands. It can hear you when you speak to it from across your bedroom or other room.

The beauty of using the Echo is that it’s produced by Amazon. That means it gets new features, updates, and device compatibility before third-party Alexa devices do.

Now, let’s jump in and learn how to integrate your Dyson TP04 with Amazon Alexa.

Did I say you need to have a Dyson account first? Yes, go ahead and open one if you haven’t already.


Step 1


Download the Amazon Alexa app. You can download the Amazon Alexa app from Google Play, App Store, or Amazon App Store.

So, what operating systems is the Amazon Alexa app compatible with? The app is compatible with iOS 11.0 or higher, desktop browsers, and Android 5.1 or higher. It’s also compatible with Fire OS 5.3.3 or higher.


Step 2


Open the Alexa app and download Dyson Skill. Next, click on “Enable.”


Step 3


Step 2 should take you to the Dyson Link app. Once the Dyson app loads, it’ll prompt you to log in.

At this point, enter your Dyson account details. Doing this enables Amazon Alexa and links it with your Dyson TP04 or any other Dyson air purifier. That’s all — you’re done.


How to Resolve Dyson TP04 Amazon Alexa Issues


I’ve read a few Amazon reviews where owners reported that their TP04’s Alexa feature just stopped working. An exclamation mark (!) started showing on the display after they commanded Alexa to perform a task. And the exclamation mark just wouldn’t go away.

The reviewer tried turning their device on, but that was of no avail. The thing started oscillating, but it stopped after about 5 seconds. Regardless of the fan speed chosen, the device wasn’t blowing the air at all.

Fortunately, Dyson replaced the problematic, and the customer was happy.  But for some reason, they didn’t explain the issue.

So, did the new unit work well with Alexa? It did — at first — but it later stopped. That’s when user re-linked their device, and it started working again with Alexa. But their relief lasted only a day. The freaking exclamation mark returned.

Well, that’s sure frustrating. I mean, this Dyson doesn’t come cheap. You’d expect it work seamlessly.

The customer didn’t want to return the device a second time. So, they had to find a way to make it work.

Here’s what they did. First, they delinked the app. Then, they disabled Dyson skill within the Alexa App. Next, they disconnected the device from power.

After waiting for about 20 seconds, they rebooted the router. Finally, they powered up the fan. And it worked!

But this glitch wasn’t a nice thing. If you don’t want to delink and re-link the Alexa app every once in a while, don’t use the feature. Or buy something else.

Luckily, you can use the app or remote control and operate your device without issues.


Is this Dyson IFTTT Enabled?


No, the Dyson TP04 isn’t IFTTT supported. I contacted Dyson on the issue. And they confirmed that none of their air cleaning devices are IFTTT enabled.

I know of competing air purifiers in the same price range that offer this capability. Wouldn’t it be great if a decrease in your room’s humidity levels would automatically turn on your humidifier?

But I don’t see this as a bummer. I mean, you can use Alexa to create much convenience in your home. That this purifier doesn’t support IFTTT connection wasn’t a dealbreaker for me.


Dyson TP04 Noise Problems


Some users have complained of hearing a whining or whistling noise. If that’s you, don’t worry. Simply unplug your machine and leave it for 10 seconds. Then restart it. It should be fine. This sound normally happens when you’re running this purifier on high.

I’ve also noted that my Dyson TP04 sometimes produces some clicking noise. If this happens, don’t worry. This clicking noise isn’t an indicator that something is wrong with your purifier.

The device is designed to make this sound whenever its motor is adjusting air flow direction. As the TP04 switches from front air flow to rear air flow, you’ll hear a clicking noise.

That clicking noise may also be heard during oscillations. If it’s a problem for you, check the area around the base of the purifier for any obstructions or debris.

Interestingly, the TP04 also produces a humming noise even when it’s powered off. So, why does that happen? This Dyson is designed to continue monitoring the air quality, humidity, and temperature even when turned off. Its air quality sensors use small fans that keep the air flowing the whole time. However, the noise isn’t disturbing at all.

But why does the Dyson TP04’s fan speed remain high even when the display has turned green? When the display shows green, it means your air quality is good. And ideally, the thing should switch to a lower speed (if it’s on auto). But it may not always switch to a lower fan speed.

You’ll notice that the machine behaves this way only when it’s on auto mode. This also happens if your room’s window leaks and pollutants keep entering.

But who really needs continuous air quality monitoring when they’re not using their Dyson TP04? No one, that’s who.

And here’s good news. You can actually stop the machine’s continuous monitoring when it’s not in use. To do that, use your app or remote control to switch back to the manual mode. On the remote control, press “Auto” for 5 seconds. The humming noise should stop.


Here’s Another Simple Thing you Should Do


Go to your Dyson Link app and instruct your machine to stop collecting air quality data when turned off.


Here’s precisely how to do that:


Step 1: Open the app and go to settings.


Step 2: Find the continuous monitoring option and tap to open it.


Step 3: Disable “Collect data when in standby.” That icon will immediately turn grey.


Step 4: Press “Done” at the top right area of the screen to save the change you’ve made.

The humming noise should stop permanently. And your TP04 will stop consuming energy when it’s not cleaning your room.


Dyson Pure Cool TP04 Review: Final Thoughts


The Dyson Pure Cool TP04 is a great air purifier-cooling fan combo. It does make my son’s bedroom a happier, healthier place. But I’m not saying it should be everyone’s choice. I’m only saying I have no regrets. If I were to buy a brand new air purifier today, it’d still be a Dyson. That’s because it works.

The machine is excellent at providing allergy relief. Every person who battles asthma should probably buy one. The unit has been tested thoroughly by the AAFA. And it’s won this trusted organization’s coveted Asthma and allergy friendly certification. 

You can use this air purifier all year round. It’s the perfect device for summer use since it comes with a fan. And it’s a great winter option because of its airflow reversal ability. And you’ll love, like I do, the unit’s up-to-350-degree oscillation. Coupled with the machine’s Air Multiplier Technology, the oscillation feature helps you to effortlessly clean every corner of your home. 

I noticed a difference within hours of introducing the machine into my son’s bedroom. Its air quality sensor is a feature I really love. And Dyson’s Link app makes the device very easy to use. Also, being able to command your TP04 and tell it what to do is awesome. 

Another great thing is that the device provides you with real-time indoor and outdoor air quality reports. It tells you whether you have unhealthy levels of PM2.5 and PM10. In addition, it automatically launches a higher fan speed to resolve the situation. 

However, the device is steep. Sure, the device delivers many great benefits to users. However, if I had to save money for months or even borrow to buy this fan, I’d probably consider a cheaper alternative. But if money isn’t an issue for you, the Dyson TP04 would doubtless be a great option. Still, I’d love to see a much lower price. 

Overall, I’d say the Dyson TP04 is a great product that deserves a chance from quality-conscious consumers. That’s why I’ve given this air purifier a rating of 4/5 : 4 out of 5 stars (4 / 5)

Interested in this air purifier? Go to Amazon now and buy the Dyson Pure Cool TP04 HEPA. You can also head over to Amazon to view other equally great if not better air purifiers

Leave a Comment