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  2. This bestselling HEPA air purifier is over 40% off at the ...

    www.aol.com/lifestyle/this-bestselling-hepa-air...

    Plus, its dual-channel tech and 360-degree air vent will refresh the air five times per hour in spaces as large as 215 square feet. That makes this ideal for any room in your house. Aroeve Air ...

  3. List of Honeywell products and services - Wikipedia

    en.wikipedia.org/wiki/List_of_Honeywell_products...

    Honeywell T87, its classic "Round" thermostat; Variable Air Volume (VAV) Controller, Wall Module and Box [74] Variable Frequency Drive (VFD) [75] Warehouse Automation [76] Water Purifiers [77] WIN-PAK software suite [78] Wireless intrusion alarm systems - ARMOR 300 [79] Wiring Device [80]

  4. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

  5. Air filter - Wikipedia

    en.wikipedia.org/wiki/Air_filter

    High efficiency particulate arrester (HEPA), [2] [3] originally called high-efficiency particulate absorber but also sometimes called high-efficiency particulate arresting or high-efficiency particulate arrestance, is a type of air filter. Filters meeting the HEPA standard have many applications, including use in clean rooms for IC fabrication ...

  6. HEPA - Wikipedia

    en.wikipedia.org/wiki/HEPA

    Common standards require that a HEPA air filter must remove—from the air that passes through—at least 99.95% (ISO, European Standard) [4] [5] or 99.97% (ASME, U.S. DOE) [6] [7] of particles whose diameter is equal to 0.3 μm, with the filtration efficiency increasing for particle diameters both less than and greater than 0.3 μm. [8]

  7. Fan filter unit - Wikipedia

    en.wikipedia.org/wiki/Fan_filter_unit

    The units are installed within the system's ceiling or floor grid. Large cleanrooms require a proportionally large number of FFUs, which in some cases may range from several hundred to several thousand. [1] [2] Units often contain their own pre-filter, HEPA filter and internally controllable fan air distribution. [3]

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