A rule of thumb when figuring your ventilation requirement: If your ceiling is 8-feet high, take the square footage the room and multiply it by 1.07. This will provide you with the minimum cfm requirement of the space. Add a timer to the fan so it can be left on after the room has been used, and make sure the fan can be ducted to the outside.
Jeffrey Holloway has been designing kitchens and bathrooms for more than 22 years. Holloway’s projects have been featured in local and national shelter magazines and have won consecutive Chrysalis Awards. He has been recognized by the National Association of the Remodeling Industry as a regional contractor of the year.