FAQFREQUENTLY ASKED QUESTIONS
AIR PURIFIER 101
LEVOIT CORE 300
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Air purifiers work by sucking in air through internal fans, pushing it through a filtration system, and releasing it back into your indoor environment. But with so many air purifiers on the market, choosing the best one for you and your family may be confusing. This is why we strongly recommend a purifier with a verified True HEPA filter.
Many products on the market are labeled “HEPA-like” and “HEPA-type”, but they’re actually disguising the fact that their product doesn’t meet top industry standards. To be considered “True HEPA,” an air purifier must meet strict U.S. Department of Energy standards. HEPA stands for High-Efficiency Particulate Air, meaning that these filters are at the highest efficiency possible. True HEPA filters remove 99.97% of particles as small as 0.3 microns. For reference of how small 0.3 microns is, things are invisible to the naked eye starting at 40 microns!
Clean Air Delivery Rate (CADR) measures the efficiency of an air purifier by indicating the volume of clean air that an air purifier produces per minute. This is based on the removal of dust, pollen, and smoke, which are the 3 most common indoor air pollutants. The higher the CADR, the more particles the air purifier will remove and the larger the layer it can clean. The rating is measured at the air purifier’s highest speed.
The air change rate is how many times all of the air in a room can be purified (or “changed”) by the air purifier in 1 hour. Air changes per hour are calculated on the recommended room size assuming 2.4 m/ 8ft ceilings. The Core 300 has an air change per hour of 5, which means it can change air 5 times at the max speed in a single and closed room of 40 sqm.