Bathroom Ventilation Fans Bathroom Ventilation Fans
In order to move moist air from a bathroom to the outside, bathroom ventilation fans are needed. Rated to vent a certain amount of cubic feet per minute (CFM), bathroom fans help to prevent the buildup of mold and mildew. They also keep moisture from damaging interior materials. Bathroom ventilation fans may provide fan-only use, or they may combine with a light to be multifunctional. Ventilation fans, as their name suggests, require a vent, typically 3 inches in diameter, to the outside.
Bathroom ventilation fans may be either wall- or ceiling-mounted and most commonly consist of an inserted unit covered with a plain grille. Shapes range from circular to square and rectangular, and the CFM number indicates the amount of air the fan can effectively vent in a minute. The higher the number, the greater the fan's capacity. The CFM rating for residential bathroom ventilation fans usually ranges between 50 and 130.
Most ventilation fans feature an enclosed condenser motor for quiet operation. Energy Star-qualified units are available, while those units that feature lights may come with deluxe fluorescent, energy-saving bulbs. A combination ventilation fan/heater provides warmth in the bathroom, perfect for when you step out of the bath or shower on cold days.