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2. High-volume low-speed fan - Wikipedia

   en.wikipedia.org/wiki/High-volume_low-speed_fan

   A High-volume low-speed fan. A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than 7 feet (2.1 m) in diameter. [1] HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed."

3. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Brushed DC ceiling fans. Before the current switched from DC to AC, there were productions of brushed DC ceiling fans. Those are wired directly to DC wires. Brushless DC ceiling fans. This type of fans uses BLDC technology which offers much higher efficiency than normal fans driven with traditional AC motors. These are quieter than AC motor ...

4. List of appropriate technology applications - Wikipedia

   en.wikipedia.org/wiki/List_of_appropriate...

   Electrical powered fans (e.g., ceiling fans) allow efficient cooling, at a far lower electricity consumption as airconditioning systems. A solar chimney often referred to as thermal chimney improves this natural ventilation by using convection of air heated by passive solar energy.

5. 25 Game-Changing Home Products Our Editors Loved in 2024 - AOL

   www.aol.com/lifestyle/25-game-changing-home...

   Sonic Power Electric Scrubber. Sonic Power. $59. You haven't experienced efficient cleaning until you've tried an electric scrubber. Britt tested this one from Sonic Power this year, calling it ...

6. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Window and central air conditioning in the 1960s caused many companies to discontinue production of fans, [12] but in the mid-1970s, with an increasing awareness of the cost of electricity and the amount of energy used to heat and cool homes, turn-of-the-century styled ceiling fans became popular again as both decorative and energy-efficient.

7. The best air purifiers of 2025 - AOL

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

   We put the best air purifiers from Lenovo, Honeywell, Winix, and more to the test to see which held up best (and actually purified the air for you). See what our product scientist has to say.