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Levoit Core 300 Air Purifier Review

Derek Hales

Written By: Derek Hales

Updated on:

Basic Purifier, Great Performance


Levoit Core 300 Air Purifier

The Levoit Core 300 air purifier is a basic air purifier with 3 fan speeds, a timer, and a sleep mode. It can treat rooms up to 215 sf. in size and had strong performance in our at-home tests. This purifier can’t detect the current indoor air quality or respond to environmental changes, but if you’re looking for a purifier that will just run exactly how you tell it to, the Core 300 is a solid choice.Check Price


  • Good for small areas, maxing out coverage around 215 sf.
  • Lightweight and easy to move to various locations
  • 360° HEPA filtration


  • Lacks “auto mode” and the ability to detect drops in indoor air quality
  • No LED light to display current air quality

Levoit Core 300 Design

The Levoit Core 300 air purifier is a shorter, white tower with a matte plastic shell and simple LED controls on the top of the tower.

It has a 360° ait intake at the bottom of the unit and the air output grill is at the top of the purifier.

front view of the Levoit air purifier
Levoit Core 300 air purifier

The LED controls on top make it easy to adjust fan speed, set a timer, enable sleep mode, turn off or lock the display, or get a notification of when it’s time to reset the filter.

The Filters

This Levoit Core 300 uses three stages of filtration for the best performance, including:

  1. Fine pre-filter: captures larger particles like dust, lint, or fibers
  2. HEPA filter: captures particles as small as 0.3 microns
  3. Activated carbon filter: for odors like smoke, food, or pets
360° HEPA filter on the Levoit Core 300 air purifier
Levoit Core 300 HEPA filter

The combination of these filters helps to ensure that all of the air is effectively treated and only clean air passes through.

When it’s time to replace the filters, a filter indicator light on top will glow to let you know.

True HEPA filters stop particles from traveling into clean air
How HEPA filters trap particulates

The Controls

As mentioned above, all of the controls for this Levoit purifier are located on the top in a circular layout. In the middle is the “on / off” button with various other functions around the circle.

The features include:

  • Timer (2, 4, 6, 8 hours)
  • Sleep mode
  • Adjust fan speed (low, medium, high(
  • Display lock
  • Filter reset
  • Display off
Controls for Levoit air purifier Core 300
Levoit Core 300 air purifier controls

The Modes

This purifier has four power modes it can operate in.

  • Sleep Mode: operates at the quietest dB level and dims the lights while you sleep
  • 1 Speed: low fan speed
  • 2 Speed: medium fan speed
  • 3 Speed: high fan speed

NOTE: Unlike more advanced models, the Core 300 does not have an Auto Mode.

Size & Dimensions

The Levoit Core 300 air purifier is essentially a smaller version of the Levoit LV-H133 and is slightly larger than the Levoit Vista 200 purifier.

size of the Levoit Core 300 air purifier
Levoit Core 300 air purifier size comparison

In comparison, the Core 300 is shorter, lighter, and is designed for smaller spaces, treating up to 215 sf.

Unlike larger air purifiers that are designed to sit on the floor, the Levoit Core can be used on the floor, a table, or a desktop.

  • Width: 8.7″ diameter
  • Height: 14.2″ tall
  • Weight: 8.75 lbs.

Accessories & Parts

The Levoit Core 300 doesn’t really come with any accessories, besides the parts and filters that necessary for general use.

Parts of the Levoit Core 300 include:

  • Base
  • Shell
  • HEPA filter — 3 Stage
all components of the Levoit Core 300 air purifier
Parts of the Levoit Core 300 air purifier

What’s in the box?

  • Levoit Core 300 Air Purifier
  • True HEPA 3-Stage Original Filter
  • User Manual / Quick Start Guide

Although they’re not included with the original purchase of the Core 300, Levoit does offer a few accessory filters for various needs. Each filter is modified with features specifically designed for different needs.

These filters include:


Levoit Core 300 - Original HEPA filter

Best For: Allergies, dust, and minor odors

Pet Allergy

Levoit Core 300 - Pet Allergy filter

Best For: Pet allergies and strong odors.

Toxin Absorber

Levoit Core 300 - Toxin Absorber filter

Best ForHigh air pollution, smoke, and environmental toxins

Mold & Bacteria

Levoit Core 300 - Mold & Bacteria filter

Best ForMold, bacteria, and musty environments


In terms of performance, the Levoit Core 300 was pretty consistent with other results we’ve seen from Levoit. This purifier is compact, budget-friendly, and did a great job of purifying the air.

Testing Series

For performance testing, we set up the Levoit Core 300 in a medium-sized room in my home. We used the Temtop LKC-1000S+ professional air quality detector to get a baseline reading for the existing air quality. From there, we let the purifier run for an hour and then re-ran measurements.

The difference between the baseline and post-run data gives a solid picture of how well the air purifier was able to improve indoor air quality.

Good vs. Bad Air Quality

Below, we’ve included information on the testing criteria and what defines good vs. bad air quality.

air quality index - PM 2.5 particulate matter index

What were the results?

Starting Baseline

  • PM2.5: 4.0
  • PM10: 6.7
  • Particles: 214
  • AQI: 16

After 1 Hour

  • PM2.5: 0.4
  • PM10: 0.4
  • Particles: 29
  • AQI: 0

Within 1 hour the Levoit Core 300 removed 96% of air particulates from the medium-sized room we tested in (~12’x12′).

Levoit improved PM2.5 air quality by 87%. Overall, the Core 300 air purifier did an exceptional job of purifying the air.

How loud is the Levoit?

According to the manufacturer, the Levoit Core 300 is slightly quieter than larger Levoit purifiers. Noise levels can range from 24-50 dB. The 50 dB is documented on high speed while the 24 dB is documented on sleep mode.

For comparison, breathing is rated around 10 dB and a library would be around 40 db.

Setup & Usability

Setting up the Levoit Core 300 is simple and intuitive. To get up and running, follow the steps below:

  1. First, unbox the purifier and remove all excess packaging.
  2. To remove the shell from the base, twist it counterclockwise.
  3. Remove the plastic bag of the filter before running the air purifier. 
  4. Twist the shell to lock it back in place.
Unboxing the Levoit Core 300 air purifier
Unboxing the Levoit Core 300 air purifier

To start a cycle, you can press the “on” button and select a fan speed. To that end, keep in mind that the Levoit Core 300 does not offer an Auto Mode.

You’ll need to manually select the desired fan speed, as this model cannot automatically detect or respond to changes in indoor air quality.


To keep the air purifier running at its peak performance, proper maintenance is an important step.

With that in mind, here’s a quick checklist of maintenance items for the Levoit Core 300 air purifier.

  1. Wipe down the air intake and outlet grills with a dry, lint-free cloth
  2. Replace the filters as needed, every 6-8 months as recommended by the manufacturer
Levoit Core 300 filter - 360° HEPA
Close up of the Levoit Core 300 filter

The Core 300 also has a filter indicator on top of the unit which lets you know when it’s time to put in fresh filters.

Is the Levoit Core 300 a good value?

If you’re looking for the best bang for your buck, value may be an important factor when hunting for the best air purifier.

For the price, I would say that the Levoit Core 300 is a good value. It is intuitive, easy to use, and has a variety of modes as well as a timer and sleep function.

The one thing it’s really lacking is an auto mode or built-in air quality detection sensors. But, that being said, the price is also lower than most purifiers that have this feature.

If you’re looking for a great deal and don’t need the details of current air quality, the Levoit Core 300 air purifier would be a fantastic option.

Levoit Specifications

ModelCore 300
Area CoverageUp to 215 sq. ft.
Weight8.75 pounds
Air Output360°
Filters3 filters (1 pre-filter, 1 HEPA, and 1 carbon)
Filter IndicatorYes
TimerYes, 2/4/6/8 Hour
Auto ModeNo
Sleep ModeYes
Wifi CompatibleNo
ReturnsVaries by retailer
Warranty1-Year limited
PriceCheck Price

Should you buy the Levoit Core 300 Air Purifier?

Soo all things considered, is the Levoit Core 300 air purifier the right choice for you?

This model is compact, lightweight, and a great option for small areas like bedrooms, kitchens, or home offices.

Overall, I would recommend the Levoit Core 300 if you’re looking for an air purifier with the following features:

  • Compact size: This air purifier is compact and lightweight. If you plan on moving the purifier around to different spaces or if your primary space is under 250 square feet, the Core 300 could work well for you.
  • Value priced: If you’re looking for a medium coverage air purifier for under $100, the Levoit Core 300 has you covered. This purifier strikes a balance of area coverage, solid performance, and a reasonable price tag.
  • Excellent performance: During our performance tests, the Levoit Core 300 improved the indoor air quality, reducing the particulate count by 96% and improving the PM2.5 value by 87%.

For more information or the buy the Levoit Core 300 air purifier, click here.

Budget-Friendly, Compact Design
  • Design - 94%
  • Performance - 97%
  • Quality - 94%
  • Usability - 95%
  • Value - 96%


The Levoit Core 300 air purifier is an excellent small to mid-size air purifier with a simple design and user interface. It has a 360° HEPA filter that maximizes air input and output to help cover more area faster. There are 4 modes on this purifier; high, medium, low, and sleep. The biggest disadvantage to the Core 300 is that it lacks wifi connectivity and an “Auto Mode” which would sense the current indoor air quality. But that spec aside, this purifier is still a really great unit and effectively improved indoor air quality during our performance tests.

About Derek Hales

Derek HalesDerek Hales is the Founder and Editor-in-Chief of He has been featured in Fast Company, Reader's Digest, Business Insider,, She Knows, and other major publications. Derek has a Bachelor's Degree in Business Administration from Kansas State University. Hales has been testing and reviewing products for the home since 2014.

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4 Comments on “Levoit Core 300 Air Purifier Review”

  1. Being that the Levoit core 300 lacks the auto mode and air quality detector, is Winix a230/231 a good alternative, if not which is? How does it compare to Levoit core 300 performance and noise wise? and lastly do you how reliable it would be to get the Smartmi p1, as far as getting access to filters and warranty?

    • Regarding how Levoit compares to Winix, I don’t know. We haven’t tested Winix yet. Winix is a well known and generally well-thought of brand, so I expect Winix would be just as good and arguably better along some attributes.

      Regarding the Smartmi P1. I would think filters and warranty aren’t going to be an issue. Smartmi is the sister brand of Airdog, which has a longer and more established history. I don’t think there’s any reason to think there won’t be a steady supply of filters and warranty support moving forward.