Levoit Core 300 True HEPA Air Purifier Review In 2022: Again Affordable

The latest edition to its lineup, Levoit Core 300 True HEPA air purifier is a significant improvement over its predecessor model. A compact, cost-effective, Energy Star certified model that can provide fresh air in a small room. In this competitive affordable segment, how capable is the air cleaner in removing allergens and smoke particles in the air? What are the supporting features that can enhance the user experiences? Find out in our Levoit Core 300 review plus the pros and cons of owning one.
online price**
±99.99 $$/ 7

(annual filter cost ±20-40)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.

LEVOIT Core 300 Specification

ProductLEVOIT Core 300
8.7 x 14.2 x 8.7 in
(22.1 x 36.1 x 22.1 cm)
Weight8.8 lb (4 kg)
Coverage (up to)219 sq. ft. (20 m2)
Airflow speed
Dust free (CADR)140 cfm (238 m3/h)
Pollen free (CADR)145 cfm (246 m3/h)
Smoke free (CADR)141 cfm (240 m3/h)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
H13 True HEPA filter
6 - 8 months
Carbon filter
- Lifespan
- Replacement cost ($)
High-Efficiency Activated Carbon Filter
6 - 8 months
Ionizer/ Technologies
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
LEVOIT Core 300-RF 3-in-1 Replacement Filter
6-8 months
+- 19.99
Optional/ Addon
Noise level24–50 dB
Power usage level45 W
Timer/ Scheduler2/ 4/ 6/ 8 hours
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty2 years
Email/ Phone support

Key Features

  • 3-stage filtration with QuietKEAP and Vortexair Technology
  • Washable Pre-filter
  • True-HEPA filter - Trap 99. 97% of fine particles as small as 0. 3 microns
  • Activated carbon filter
  • 3 fan speeds with Sleep mode
  • Timer (2, 4, 6, 8 hours)
  • Child lock
  • [OPTIONAL] Pet Allergy Filter, Toxin Absorber Filter, MB Filter
  • 2 years warranty

Design And Usability

LEVOIT Core 300 dimension
8.7 x 14.2 x 8.7 in
(22.1 x 36.1 x 22.1 cm)
LEVOIT Core 300 weight
8.8 lb (4 kg)

There are plenty of features you will get at a fraction of the cost. LEVOIT Core 300 is a CGD 2019 award-winning, California designed air purifier. At a thin 8.7 diameter and 14.2 in height, portability is one of its core strengths. You can place it on the work desk, at the bedside, cabinet, or anywhere as you pleased. The 8.8 pounds weight is not the lightest in its class, you can still effortlessly carry it around when needed or bring it out during a staycation. The cylinder shape body looks clean yet functional with a 360 surrounding air inlet and top air inlet. Comes in multiple color options, white is the popular option closely followed by the black version. Overall, the build quality is superb with no signs of off-gassing or poor workmanship.

Moving to the top black panel touch controls, there are up to 6 selectable buttons that ease the entire operation. You can manage the airflow output between the 3 fan speeds or activate/ deactivate sleep mode. Next, cycle between 2, 4, 6 8 hours timer option that can be set to turn off the machine when the time is up. The child lock button allows you to locks the setting to prevent children from meddling with it. There is even a light off button that can be activated to turn off all indicator lights. Finally, Filter reset/ check button is also present along with the center power on/ off button.

Other passive specifications of LEVOIT Core 300 3-in-1 include ozone-free setup that complies with California air resources board (CARB), Energy Star, CA PROP 65, FCC certified, and ETL listed. An extended 5 years warranty is also on board that covers electrical boards and other non-filter defects. With Levoit’s strong reputation and California-based customer service support, the air cleaner will have no issue lasting for years to come.

Airflow, Coverage, And CADR

LEVOIT Core 300 coverage
Purifying coverage
219 sq. ft. (20 m2)
LEVOIT Core 300 fanspeed
Despite its compact size, airflow performance is never an issue with LEVOIT Core 300. The Vortexair Technology help creates consistent and strong airflow delivery rate in all directions. The 3-in-1 purifying radius will cover 219 square footage at 5 air changes per hour in under 12 minutes. Works great in the bedroom, basement, office room, small living room, and kitchen. For an asthmatic or hypersensitive person that needs absolute clean air, drop the coverage to half to trade-off for swifter air changes.
LEVOIT Core 300 dust CADR
140 cfm (238 m3/h)
LEVOIT Core 300 pollen CADR
Pollen CADR
145 cfm (246 m3/h)
LEVOIT Core 300 smoke CADR
Smoke CADR
141 cfm (240 m3/h)
LEVOIT Core 300 participate in AHAM's official clean air delivery rate test and scores reasonably well. CADR for dust is at 140 cfm, pollen is at 145 cfm, and smoke at 141 cfm. Below our 200 cfm benchmark but at least the airflow output is consistent on all types of allergens. Anticipate optimized air cleaning performance when the air purifier is running at full capacity.

Recommended Read

Filters And Performance

Levoit Core 300 does not cheap out on the filters. It comes with a complete 3-stage filtration that includes a standalone pre-filter, a True HEPA filter, and an activated carbon filter. The ultra-fine pre-filter trap large particles like dust, hair, lint, the debris. The pre-filter will also help protect and extend the life of the HEPA filter. The japan-imported true HEPA filter will capture microscopic particles as small as 0.3 microns e.g. dust mites, mold spore, mildew, pollen, pet dander, fungi, bacteria, and viruses. Finally, the granular activated carbon filter neutralizes household smoke and odors. For greater filtration against a specific type of contaminants, there is the upgradable Pet Allergy, Toxin Absorber, and MB Filter. Pet Allergy is effective against pet odors, diapers, and cooking smells. Toxin Absorber Filter specializes in chemical fumes from cigarettes, vehicle exhaust (CO), ammonia, radon, and volatile organic compounds (VOCs). MB Filter focuses on neutralizing germs and impedes microorganism growth.

Noise And Energy Usage

LEVOIT Core 300 noise level
Noise level
24–50 dB
LEVOIT Core 300 power consumption
Power consumption
45 W

Like most small air purifiers, Levoit Core 300 True HEPA will operate silently in the background thanks to its QuietKEAP Technology that helps reduce the fan noise. At the lowest speed, the noise level is only at a whispering 24 dB. Even at high speed, the noise output is still at a reasonable 50 dB. For a good night sleep without any disturbance, set it to sleep mode (low speed + indicator light off) and enjoy breathing clean air free from allergens.

Levoit Core 300 True HEPA air purifier is powered by an AC 120V/ 50Hz with average 45 watts power output. Being an Energy Star Rated mode, the running cost is around $0.1 dollars per day with 12 hours of operation. Multiply by 30 days, the monthly running cost is around $3.2 dollars a month, or 38 dollars a year. Suitable for all-day purifying without adding much cost to your electricity bill.

Pricing And Maintainence Cost

+- 99.99
LEVOIT Core 300 annual filter replacement cost
Annual Filter Cost
+- 20 - 40
^ Replacement filters/ estimated cost
Another forte of Levoit Core 300 is the low selling price. At around 100 to 150 dollars after the online discount, you are getting a genuine True HEPA air cleaner with an activated carbon filter. Most similar price range models offered a weaker filtration set with poorer airflow performance. As for filter replacement cost, Levoit Core 300 will set you back between 20 to 40 dollars for the default filter set. Add another 10-20 dollars if you opt for the Pet Allergy Filter, Toxin Absorber Filter, or MB Filter upgrade.
There are no short of places you can buy Levoit Core 300 True HEPA air purifier. The official website is a good place as you are ordering directly from the manufacturer itself. The better pick would be Amazon as it is selling a brand new model for less than 100 dollars. You will also enjoy hassle-free shopping without having to register a new account plus all the Amazon perks like prime free shipping, 30 days no question asked return policy, and bundled deals. Levoit brand is also available in physical stores like Walmart, Costco, Home Depot but it is subject to availability.

LEVOIT Core 300 VS The Challengers

Levoit LV-H126 air purifier

Levoit LV-H126

Older model that comes with a useful night light and a slightly cheaper selling price. Filtration wise it is incomparable to LEVOIT Core 300.
Levoit LV-H132 Review

Levoit LV-H132

Around similar price range with a smaller body treated with special blue cloth front panel. Due to the weaker filtration performance, we would still recommend LEVOIT Core 300.
Medify Air MA-15 Air Purifier Review

Medify Air MA-15

Tad bulkier and pricier but excel in every other department. You'll get wider purifying coverage, higher airflow output, and the all-important H13 HEPA filter.

Final Thoughts On LEVOIT Core 300

Levoit Core 300 is one of the best cheap air purifiers currently on sale. Out of the crazy high 21,878 ratings, 95% of the reviewers gave it a positive 4 to 5 star ratings. A large chunk of them praised how effective Levoit Core 300 is in cleaning the air. They breathe better, cough less, and can sleep soundly at night. Most buyers are also happy with the affordability of Levoit Core 300 compared with other household appliances. Finally, some users like the fact that Levoit Core 300 comes with a worry-free 5 years warranty ownership. The mere 3% of buyers that are not happy with their purchase complained that the air cleaner did not improve on their condition or they receive a faulty unit. Finally, a few users did not like that the fact you have to upgrade the filter for a specific type of pollutants.

Overall, the number of positive feedbacks clearly outweigh the cons. If you want a cheap, compact HEPA air purifier, and are ok without Auto mode, air quality indicator, Levoit Core 300 will fit all the bills.


  • Covers up to 219 square feet of space yet costs no more than 100.
  • Compact cylinder shape body that can be placed at tabletop or work desk.
  • Genuine True HEPA filter that effectively removes fine particles like mold, bacteria, and viruses (upgradable).
  • Activated carbon filter remove smoke and odors coming from pets, cigarettes, cooking, chemicals (upgradable).
  • QuietKEAP whisper quiet technology (at the lowest speed).


  • Limited airflow performance given its small form factor.
  • The filter replacement cost can add up if you go with the optional upgrade.
Levoit Core 300 True HEPA Air Purifier Review

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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