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2. High-volume low-speed fan - Wikipedia

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

   Larger diameter fans can move more air than smaller fans at the same speed. A turbulent, high velocity air jet dissipates very quickly. A large column of air, however, "travels" farther than a small one due to the friction between moving air and stationary air, which occurs at the periphery of the moving column. [8]

3. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Industrial style ceiling fans are very popular for household applications in Asia and the Middle East. A 5-blade ceiling fan in a restaurant. HVLS fans are large-diameter ceiling fans, intended for large spaces such as large warehouses, hangars, shopping malls, railway platforms and gymnasiums. These fans generally spin at a lower speed but due ...

4. Heating, ventilation, and air conditioning - Wikipedia

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

   In summer, ceiling fans and table/floor fans circulate air within a room for the purpose of reducing the perceived temperature by increasing evaporation of perspiration on the skin of the occupants. Because hot air rises, ceiling fans may be used to keep a room warmer in the winter by circulating the warm stratified air from the ceiling to the ...

5. 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.

6. List of Dyson products - Wikipedia

   en.wikipedia.org/wiki/List_of_Dyson_products

   With a very small dust container of 0.68 litres, and cord length of 5 metres (20'), it was designed for small flats with primarily hard floors. It weighs 5.6 kg (12 lb). DC29 2012: In Australia the DC29 is a cylinder model, an improved version of DC19. Very similar to DC19T2, the main differences being colour and tooling and non-HEPA machine.

7. The 17 Best Remote Control Vibrators for Discreet & Long ...

   www.aol.com/17-best-remote-control-vibrators...

   The Top 17 Remote Control Vibrators Top 5 Picks for the Best Remote Control Vibrators. Best remote control vibe overall - Lovense Lush 3. Great for couples - Lelo IDA. Syncs with audio erotica ...