Standard Bath Exhaust Fans

?CFM stands for Cubic Feet per Minute. It indicates how much air the ventilation fan can remove from a room in a minute. Be sure to match the CFM to the size of your room.CFM

1. 50-100 CFM (2)
2. 110-200 CFM (1)

Duct Size

1. 4 inch (3)

?These are bath fans which also have a heater incorporated into their housing.Fan With Heater

1. No (2)
2. Yes (1)