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What is a HEPA air filter?

Reed Barich
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HEPA (high-efficiency particulate arrestance) furnace filters are in a premium-quality class of filtration. To meet HEPA standards a filter typically must remove at least 99.97% of particles that have a size of 0.3 um. HEPA filters are usually used for commercial, industrial, and healthcare applications. However, a HEPA filter can be used for people who suffer from allergies and respiratory issues.

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