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2. Corsi–Rosenthal Box - Wikipedia

   en.wikipedia.org/wiki/Corsi–Rosenthal_Box

   An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

3. Air ioniser - Wikipedia

   en.wikipedia.org/wiki/Air_ioniser

   Air ionisers are used in air purifiers to remove particles from air. [3] Airborne particles become charged as they attract charged ions from the ioniser by electrostatic attraction . The particles in turn are then attracted to any nearby earthed (grounded) conductors, either deliberate plates within an air cleaner, or simply the nearest walls ...

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. Dehumidifier - Wikipedia

   en.wikipedia.org/wiki/Dehumidifier

   In an air conditioner, however, the air passes over the cold evaporator coils and then directly into the room. It is not re-heated by passing over the condenser, as in a refrigeration dehumidifier. Instead, the refrigerant is pumped by the compressor to a condenser which is located outside the room to be conditioned, and the heat is then ...

6. Clean air delivery rate - Wikipedia

   en.wikipedia.org/wiki/Clean_Air_Delivery_Rate

   The clean air delivery rate (CADR) is a figure of merit that is the cubic feet per minute (CFM) of air that has had all the particles of a given size distribution removed. For air filters that have air flowing through them, it is the fraction of particles (of a particular size distribution) that have been removed from the air, multiplied by the ...

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