HEPA Filters in the Home and Office - what are they and how to select one

HEPA Filters in the Home and Office

(High Efficiency Particulate Filtration)

What does HEPA mean? (HEPA = High-Efficiency Particulate Air )

If you've shopped for a household air cleaner or a filter for one lately, you've probably noticed the acronym HEPA. Pronounced like the first two syllables in hepatitis, it stands for high-efficiency particulate air. It describes the ability of the filter or air cleaner to capture particles. The acronym originated in World War II to describe filters used in gas masks, and a military specification was written to describe these filters. The specification requires that a HEPA filter remove at least 99.97% of the particles in the air down to three-tenths of a micron in size (a micron is one-millionth of a meter). Particles this small are troublesome. They are small enough to escape most types of filtration and are easily inhaled. It's no surprise, then, that particles that trigger asthma and allergies fall within this size range. If you buy an air filter, be sure it is a true HEPA - down to 0.3 micron or smaller sized particles and at least 99.97% efficiency.

Where can I find a good air purifier / HEPA filter?

5 Stage Air Purifier, Features Ultraviolet Light (UVC), H13 True Hepa, Carbon, PCO, Smart Wifi, Auto Mode, Quiet, Removes 99.97% of Particles, Smoke, Mold, Pet Dander, Dust, Odors

PuroAir HEPA 14 Air Purifier for Home - Covers 1,115 Sq Ft - Air Purifier for Allergies - For Large Rooms - Filters Up To 99.99% of Pet Dander, Smoke, Allergens, Dust, Odors, Mold

Large Room Up to 1900 Ft² in 1 Hr with Washable Filters, Air Quality Monitor, Smart WiFi, HEPA Filter Captures Allergies, Pet Hair, Smoke, Pollen in Bedroom

Nuwave Whole House Air Purifiers, Oxypure Smart Air Purifier with 5 Stage Tower Structure Air Filter, Air Quality & Odor Sensors, Sleep Mode for Bedroom, Remove 99.99% of Dust, Smoke, Pollen, Allergen

Kenmore PM3020 Air Purifiers with H13 True HEPA Filter, Covers Up to 1500 Sq.Foot, 24db SilentClean 3-Stage HEPA Filtration System, 5 Speeds for Home Large Room, Kitchens & Bedroom

Air Purifiers for Home Large Room Bedroom Up to 1110 Ft² with Air Quality and Light Sensors, Smart WiFi, Washable Filters, HEPA Filter for Pets, Allergy, Dust

See this page for much more detailed information about indoor air filtration.

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