Levoit Core 300 Review

Like all the other Levoit air purifier reviews I’ve written, this Levoit Core 300 review aims to transform you into a more informed shopper. I hope to guide you away from horrible air cleaning devices no one should be so unfortunate to ever own. And, just in case you’d be interested in reading a Levoit Core 300 vs Levoit P350 review, I got you covered.

Look, I’m not trying to get you to buy this air purifier or anything like that. I’m chiefly interested in having you smile with satisfaction and thanking this air purifier dude for writing an honest Levoit Core 300 review. still, I’d appreciate it if you chose to support this little air purifier site by buying this product via any of the affiliate links on this site.

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Levoit Core 300 True HEPA allergen remover
82,277 Reviews
Levoit Core 300 True HEPA allergen remover
A fabulous-looking compact air purifier (a bestseller) with a CFM of 135. Offers 4 timer options, a filter check indicator, and a child-lock feature. It's also highly portable. Plus, it's unbelievably affordable.

Last update on 2023-09-28 / Affiliate links / Images from Amazon Product Advertising API

Levoit Core 300 Review: Overview

There’s a lot to like about the Levoit Core 300 air purifier. First off, this little device looks amazing — you’ll love it. Standing just 14.2″, this air purifier is a nice-looking cylindrical appliance with a finely curved exterior.

It takes unfiltered air in 360 degrees and spews purified air via the top where an easy-to-use control panel sits. And at just 7.5 lbs, even the frailest user won’t need help moving this filtration around the house.

But while I like this unit’s overall design, I notice that pet hair keeps getting trapped between the holes in the sides. For that reason, I have to clean off the hair and other filter every other week. And I don’t like it very much, but it’s not like a dealbreaker or something.

Features of the Levoit Core 300

Let’s start with the control panel.

Control Panel

The Core 300’s control panel is similar to that of the Vista 200. Actually, almost all its features are similar to those of the Vista 200. One small difference is that the timer for the Core 300 offers 2,4,6, and 8-hour air filtration intervals vs 2,4, and 6 hours for the Vista 200.

Another difference is that the Core 300 offers an extra feature, the display lock button that looks like a locked padlock. This feature is essentially a child-lock, preventing kids or pets from changing your settings.

Upgraded Air Filtration System

The purifier offers an upgraded air purification system that cleans the air in 3 distinct yet well-coordinated filtration stages. The system comprises a cleanable ultra-fine pre-filter (vacuum the prefilter twice every month) and a True HEPA filter made using the finest Japanese filtration technology. Finally, there’s a high-grade granular activated carbon filter for reducing unwanted smells.

The Core 300 Uses a Granulated Carbon Filter

At that price point, it’s hard to find an air purifier that offers a granulated carbon filter. Most low-priced air purifiers I’ve seen (and used) feature a fibrous odor filter rather than a granulated filter. And if there’s one thing I know about these smell filters, it’s that a granulated charcoal filter deodorizes spaces much better than its fibrous counterpart.

That’s probably why most users no longer notice dog smell in their bedroom after installing this device. And if you experience sinus infections like my wife Mary, you’re going to start loving your mornings more. That’s because you won’t wake up with a stuffy nose anymore. If you’re allergic to pets, I recommend you install the Pet Allergy filter instead of the usual replacement filter.

And if you live in a dusty area, you’ll notice less and less dust as the device does its magic. And in the end, you won’t see any dust on your countertops, tables, or even laptop.

Levoit Core 300 CFM and Coverage Area

The Levoit Core 300 CADR for smoke stands at 141, 140 for Dust, and 145 for pollen. Generally, any CADR rating above 100 is considered good, but the higher the rating the better.

Its CFM (Cubic Feet Per Minute) hovers around 135. What if you put the Core 300 to work in a master bedroom measuring 12ft. x 16ft. x 8ft? The unit would comfortably deliver 5 air exchanges in 60 minutes. An ACH of 5 would be good enough for both healthy people and those battling respiratory illnesses.

At that price point, you likely won’t find a comparable HEPA air purifier with such a high CFM number. In fact, the air filtration market groans under the weight of sinfully expensive air purifiers that don’t filter out pollutants any better than the Core 300 does.

Replacement Filter for the Levoit Core 300

The filter of this device is supposed to last between 6 and 8 months. But how long the filter stays useful really depends on the overall air quality your room has. The filter sells for under $26 as of this post’s date, and that’s pretty affordable.

4 Replacement Filter Types of the Core 300

One great thing about the Core 300 is that it allows you to choose any of 4 different replacement filters to serve different purposes. If dust, pollen, pet dander, and stuff like that is what you seek to eradicate, you most likely need the regular filter, the Core 300 is Core-300-RF (Original).

If you have a few furry friends around the house, consider ordering the Pet Allergy filter. To obtain the Pet Allergy filter, look for Core 300 RF-PA. And if toxins such as smog, wildfire smoke, and VOCs are your biggest concern? In that case, consider using the Toxin Absorber filter. To order the Toxin filter, search for Core 300-RF-TX.

What if mold and bacteria rather than toxins or regular particulates such as dust and pollen are your worst headache? In that case, the Mold and Bacteria Filter got your back. To buy the Mold and Bacteria filter, type Core 300 RF-MB in the search bar.

Levoit Core 300 Vs P350 Filter Interchangeability

But, can you use the filter of the Levoit Core 300 in its sibling, the Levoit P350? I know why you’re asking this question. It’s because the P350’s replacement filter costs roughly $10 more than the Core 300’s replacement filer.

Yes, you can actually use the filter of the Core 300 (which is cheaper) in its marginally pricier sibling, the P350. But you know what? Levoit prefers that you use original filters recommended for each device rather than interchanging them. If you want to use the filters interchangeably, why not? Oh, that’s how product warranties get voided!


The Levoit Core 300 comes AHAM-tested.  In addition, the air purifier is FCC certified, ETL-listed, and California Proposition 65 certified (CARB certified). Also, the product ships to overly strict California. And, it’s completely safe for normal home use.

Power Consumption

Power consumption-wise, the Core 300 comes rated 45W. If you have the machine capturing allergens 24/7, that adds around $39.42 to your annual electric bill. Not bad, huh?

But you know what? The Core 300 isn’t like the most efficient air purifier you’ll ever see. In fact, it’s accurate to say it consumes more power than most air purifiers at that price and size. But that’s because it uses a more powerful AC motor.

Plus, the fan is relatively small. And my physics teacher once said that smaller fans tend to consume more electricity than bigger ones. Correct me if my physics seems a little rusty, dear friend.

Noise Levels and Power Consumption of the Levoit Core 300 Air Purifier

Levoit says that the Core 300 is the “most silent cleaner” out there, but is that really true? According to Levoit, this air cleaner uses the QuietKEAP technology that silences the device completely.

But how could that even be possible when another Levoit, the Levoit Vital 100, produces 23 dB vs 24 dB for the Core 300 on low? shouldn’t 23 dB be somewhat quieter than 24 dB? I’d take that claim with a grain of salt.

And yes, this air purifier is amazingly quiet on fan speed 1 and II. By the way, fan speed 3 gets up to 50 dB, which isn’t like jet-engine loud, but still loud enough to disturb restful sleep.


  • Great price-point and looks fabulous
  • Filter check indicator
  • Anti-tamper feature for the settings
  • 360° air intake
  • 4 timer options
  • It’s an Amazon best seller
  • A compact air purifier: not bulky at all
  • Heavily endorsed with tons of certifications
  • Unbelievably quiet on low and level II fan speeds


  • Cheaper but still effective air purifiers available
  • No smart features aside from the check-filter indicator

As you can see, the cons aren’t so discouraging that you want to abandon this deal and buy something else. The Levoit Core 300 is a well-built Levoit air purifier that runs rings around the vast majority of indoor air contaminants.

In addition, the device looks awesome. No one would ever need to tuck in some dingy corner where no visitor would see it. I mean, who wouldn’t want an air cleaning device that’s easy on the eye while delivering tons of True HEPA filtration power? No one. That’s who.

But if for some reason you crave all the amazing convenience that comes with owing a super smart device, pick something else. And if you’re a Levoit fan, like yours truly, consider grabbing the Levoit LV-PUR131s. The machine places lots of power in your hands, letting you command it from the comfort of your couch or even outside the house.

Levoit Core 300 Review: Verdict

The Core 300 air purifier is probably the best budget Levoit air purifier Levoit provides. But some people including me feel the P350 might be a somewhat better bet.

Small wonder the Core 300 attracts positive reviews like a powerful magnet. How many air purifiers of any brand ever get a rating of 4.7 after 1600 reviews on Amazon or wherever? If you don’t like the Core 300 for some reason, there’s always the levoit P350 to consider.

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