Exhaust fans should be installed in rooms in your home where moisture or odor occur such as bathrooms and laundry rooms. While use in keeping these spaces dry and smelling fresh they can pose a serious fire hazard if they are not properly maintained.
Benefits of Exhaust Fans
A main reason for having/using an exhaust fan in the bathroom is for odor control.
Exhaust fans can reduce the humidity in the bathroom. Excessive moisture can be quite damaging to bathroom walls specifically causing paint/wall paper to peel and in extreme cases, warp.
Exhaust fans help maintain circulation increasing overall indoor comfort.
Clean at least once a year
Turn off power to the fan at the circuit box
Remove grate, wash with warm water and dish soap
Remove dust from the fan, using a vacuum or can of compressed air can be helpful
Dry and put grate back and turn circuit breaker back on