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2. Air filter - Wikipedia

   en.wikipedia.org/wiki/Air_filter

   A particulate air filter is a device composed of fibrous, or porous materials which removes particulates such as smoke, dust, pollen, mold, viruses and bacteria from the air. Filters containing an adsorbent or catalyst such as charcoal (carbon) may also remove odors and gaseous pollutants such as volatile organic compounds or ozone. [1]

3. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Clean air delivery rate (CADR) is the amount of clean air an air cleaner provides to a room or space. When determining CADR, the amount of airflow in a space is taken into account. For example, an air cleaner with a flow rate of 30 cubic metres (1,000 cu ft) per minute and an efficiency of 50% has a CADR of 15 cubic metres (500 cu ft) per minute.

4. The best air purifier for 2024 - Engadget

   www.engadget.com/best-air-purifier-120040002.html

   The Core 400S claims a half-hour air exchange rate for a 1,000-square-foot room and combines the three main filter types — pre-filter, activated carbon and particle — into a single ring ...

5. Honeywell/ITEC F124 - Wikipedia

   en.wikipedia.org/wiki/Honeywell/ITEC_F124

   Honeywell TFE731. The Honeywell/ITEC F124 is a low-bypass turbofan engine derived from the civilian Honeywell TFE731. The F125 is an afterburning version of the engine. The engine began development in the late 1970s for the Republic of China (Taiwan) Air Force AIDC F-CK Indigenous Defence Fighter (IDF), and it first ran in 1979.

6. How to clean a humidifier - Engadget

   www.engadget.com/2018-11-02-how-to-clean-a...

   Once a week, take your humidifier apart and give the tank and tray a good scrub and rinse with plain water. To help get rid of limescale, you can wipe the tank and tray with white vinegar. (A ...

7. The best humidifier - Engadget

   www.engadget.com/2017-11-05-the-best-humidifier.html

   The Honeywell HCM-350 Germ Free Cool Mist Humidifier is an evaporative humidifier that consistently performed well across all categories we tested. Though it didn't top the charts, it was a solid ...