Compact air purifiers are simple to use and maintain. You can place it on the desk while working from home or next to your couch in the living room or next to the bed in the bedroom while sleeping. An air purifier should be placed where you spend the most time. Instead of buying multiple purifiers, only one purifier can do that.

Levoit Core 300 is a cylindrical-shaped air purifier with a 360-degree air intake and a complimentary 3-in-1 filter. Without emitting any ozone, this quiet air purifier with a Smoke CADR of 141 CFM can clean a 210 sq ft room five times an hour.

In this post, we discuss Levoit Core 300 specs, key features, maintenance costs, pros, and cons. We also include a comparison among the Levoit Core series air purifiers.

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Levoit Core 300 Air Purifier

Levoit Core 300 Specifications:

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LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom,…

  • High Performance: Enjoy fresh air in 12 minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air…
  • Find Relief: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works…
  • Multiple Filter Choices: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in…
  • Most Silent Air Cleaner: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology…
  • Sleek Design: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and…

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In-depth Review of Levoit Core 300 Air Purifier:

3-stage Filtration

Levoit Core 300 comes with a combined 3-in-1 filter cartridge: a pre-filter net, a true HEPA filter, and an activated carbon filter. The outermost filter is a net pre-filter, which protects the core filters from being clogged. It captures larger airborne particles such as lints, dust, and pet fur.

The attached pre-filter is not washable, and Levoit recommends clean it with a soft brush or a vacuum hose every 2 to 4 weeks. It will increase the lifespan and efficiency of the 3-in-1 filter.

The core particle filter is a true HEPA grade filter that traps 99.97% of household dust, dust mites, pollen, mold spores, and smoke particles of 0.3 microns in diameter.

The third level of filtration is based on granular activated carbon materials, which absorb odors from pets, cooking, and VOCs. However, this is not a heavy-duty odor absorber as the filter bed thicker. So, don’t select it if your primary concern is to eliminate odors from your room.

The filter needs to be replaced every 6 to 8 months, which seems great. Levoit offers four types of replacement filters you can choose from. The air purifier has no electronic filtration such as a UV-C light or an ionizer, so the purifier is entirely ozone-free.

Clean Air Delivery Rate (CADR) & ACH

Levoit Core 300 has a CADR of 141 cfm for smoke particles, suitable for a small to medium-sized room. You will get 5 air exchanges per hour in a 210 square feet room, which looks great. The purifier has a 360-degree air intake and a top air outlet, which is the most efficient air circulation design.

The air purifier is also Energy Star certified.

Levoit Core 300 True HEPA Air Purifier touch control panel

Aesthetics & Noise Level

Levoit Core 300 is a decorative and elegant-looking air purifier. Lightweight only at 7.5 lbs, the purifier is available in Black and White you can choose from.

The touch control panel on the top is convenient to use, and it includes all the necessary features an air purifier needed. It featured 3 fan speeds and four different timers: 2hr, 4hr, 6r, and 8hr.

You can set it to sleep mode, where it goes to the lowest fan speed and turns of the indicator lights. It also features a display lock button to prevent unwanted touch.

Levoit Core 300 does not have any air quality sensors.

The lowest noise is only 24dB, which is below the whisper level, and the maximum noise level is around 50 dB, which looks a bit louder for a 141 cfm air purifier. So, you have to use it in your small bedroom at night but with lower fan speed.

Suitable Room Size for Levoit Core 300:

If you have higher ceilings, then use our Air Changes per Hour Calculator to calculate the suitable room size.

Levoit Core 300 Operating Costs:

Annual Filter Replacement: ~ $40 – $55 for different types of filters, based on 6-month use per filter (check availability & filter price).
Monthly Energy Consumption: ~ $1.9 (based on 12 cents per kWh and 12 hours use on top speed per day). Use our Energy Usage Calculator to find out the bill based on your usage and the local energy rate.

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Pros & Cons:


  • 3-in-1 combo filter including true HEPA as primary
  • A granular activated carbon filter layer
  • 100% ozone-free, 360-degree air intake
  • Moderate CADR ratings
  • Compact and elegant design
  • Available in black and white color options
  • Low maintenance costs
  • Energy Star certified

  • Pre-filter is not washable
  • Low odor removal efficiency

Check out our review >>> The 10 Best Desktop Air Purifiers

Levoit Core 200S vs. Core 300 vs. Core P350:

Levoit Core Series Air Purifier

Compact & Smart

Core 200S

Best for Particles

Core 300

Compact & Smart

Levoit Core Series Air Purifier


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Best for Odor

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Final Thoughts

Levoit Core 300 air purifier is an excellent and compact air purifier that is easy to use and has good room coverage. The purifier is suitable for filter particulate allergens and light odors from small to medium-sized rooms. It is completely ozone-free and safe for kids and pets too.

If you are looking for a small room coverage air purifier with a high-efficiency particle filter, then you can choose either the black or the white variants of the Levoit Core 300.