Fans serve many different purposes within a home. They move the air to keep it fresh and at the right temperature.
The same temperature and humidity can feel much cooler when the air is moving.
Other kinds of fans include decorative, folded fans, mobile battery operated fans, exhaust fans.
To clean the fan, first spray any form of cleaning fluid on to any piece of cloth. Use the cloth to wipe down the blades of the fan. Wipe down the blades with a dry cloth so not to quickly attract dust particles in the air.
An exhaust fan can keep the bathrooms from staying too humid or the kitchen from becoming too smoky.
Strategically placed fans can make the heating and cooling systems in a building more efficient by moving the air to where it's wanted.
- Wikipedia's article on electric fan
- United State's Consumer Product Safety Commission (CPSC)'s memo (pdf) on Assessment of Portable Electric Fans - mostly about avoiding fire hazards