Choosing the right bathroom fan is essential for maintaining good indoor air quality and preventing moisture buildup, which can lead to mold and mildew growth. There are several factors to consider when selecting a bathroom fan, including the size of the room, the level of moisture produced, and the noise level.
The most important factor to consider is the size of the room. The fan should be able to move enough air to exhaust the moisture produced in the room. A good rule of thumb is to choose a fan that can move at least 1 cubic foot per minute (CFM) for every square foot of floor space. For example, a 100-square-foot bathroom would require a fan that can move at least 100 CFM.