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2. The best air purifiers of 2025 - AOL

   www.aol.com/lifestyle/best-air-purifiers...

   One of tallest (nearly 24 inches) and heaviest (17.5 pounds) air purifiers tested, the Winix 5500-2 Air Purifier is ideal for small-to-medium rooms (up to 360 square feet), with a True HEPA filter ...

3. Air purifier - Wikipedia

   en.wikipedia.org/wiki/Air_purifier

   An air purifier or air cleaner is a device ... air resistance in the central system, requiring a greater air pressure drop ... sometimes sold as whole-house air ...

4. The 6 Best Air Purifiers for Any Room in the House - AOL

   www.aol.com/lifestyle/6-best-air-purifiers-room...

   These quiet and effective air purifiers are the best of 2023. Check out the expert-recommended air purifiers that clean out allergens, mold spores, & more.

5. The 6 Best Air Purifiers for Any Room in the House - AOL

   www.aol.com/lifestyle/6-best-air-purifiers-room...

   Airmega AP-1512HH True HEPA Air Purifier. Small but mighty, this little Coway air purifier is ideal for apartments, dorms, and close quarters. It is designed to clean spaces up to 361 square feet ...

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 ...

7. 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.