HEPA air purifiers can go as low as $30 or as high as $1000, depending on features, airflow level, and numbers of filtration. Should I get one: Yes, you should, as it is the most popular and sought-after residential air purifier in the world. Premium models even come with an additional ionizer, antimicrobial, or UV light (more on this later).Īlso known as: HEPA air cleaner, HEPA machine The activated carbon filter will focus on smoke/odor-based pollutants not captured by the HEPA filter. The initial pre-filter will trap large particulates like dust or hair. The more air cycles through the filter in an hour, the faster clean air can be achieved.Ī typical HEPA filtration in an air purifier will consist of a pre-filter and an activated carbon filter. The HEPA air purifier will distribute purified, clean air with most particulates trapped. This includes dust mites, mold, pollen, pet dander, bacteria, and viruses that our naked eyes cannot see. The accordion shape, weaving fiberglass-made HEPA filter traps particulates that pass through via interception, impaction, or diffusion. How it works: The inner fan will pull air into the HEPA air purifier filtration. The better True HEPA filter with a 99% efficiency rate on particle removal as small as 0.3 microns. The inferior HEPA-type filter with a 99% efficiency rate on particle removal as small as 2 microns. There are two common types of HEPA filters in the market. The true HEPA filter also has to reach stringent IEST and UL industry standards. DOE) standard of trapping at least 99.97% of particles equal to or greater than 0.3 μm (micrometer). A certified HEPA filter must meet The American Society of Mechanical Engineers (ASME) and the United States Department of Energy (U.S. Acronym for High Efficiency Particulate Air is a safe and proven technology used since the 1940s to filter airborne particles without producing any harmful byproducts like ozone.
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