Exhaust Fan Size For Bathroom

Broan surfaceshield vital vio powered exhaust fan w led light antibacterial light.

Exhaust fan size for bathroom. An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 7 5 minutes. Read on to find out more. Tam asks what size exhaust fan should we use in our small bathroom if your bathroom has an 8 ceiling the cubic feet per minute cfm rating for your fan should be as high or higher than the number of square feet in the room. Choose a fan that can move at least 1 cfm per square foot of room.

Determine the required cfm for your bathroom fan. Higher ceilings would require a larger fan. 10ft 10ft 8ft 7 5 106 67 cfm bathroom fan exhaust size calculator. Choose a fan that can move at least 1 cfm per square foot of room.

Bathroom select a fan with a 50 to 80 cfm rating. Small room bath fans perfect for a modest sized bath or powder room. For example if your bathroom is 80. Length x width square feet length x width x height cubic feet.

For bathrooms less than 100 square feet you can just go with 1 cfm for every square foot of floor area he says. Some manufacturers recommend the number of cfms based on square feet or cubic feet. Fans with surfaceshield technology combine the power of broan nutone s bathroom ventilation fans with vital vio s led light technology to prevent the growth of bacteria mold yeast and fungi. Bathroom select a fan with a 50 to 80 cfm rating.

If your bathroom is larger than 100 square feet tally the cfm requirements for the individual fixtures to estimate your needs. Here s how we get this number. But o brian suggests a simpler rule of thumb. A 50 square foot or smaller bathroom needs a 50 cfm fan.

To arrive at your required cfm simply divide your bathroom s volume by 7 5. Small room bath fans perfect for a modest sized bath or powder room. For bathrooms between 50 and 100 square feet estimate approximately 1 cfm per square foot. For a standard 10ft by 10 ft bathroom with an 8 ft ceiling you will need an exhaust fan capable of 106 67 cfm.

For example a bathroom with a volume of 1000 cubic feet 28 3 cubic meters needs a fan capable of moving 1000 7 5 or 133 cfm 3 8 cubic meters per minute. For example for a 50 79 sq. Sizing for large bathrooms for bathrooms over 100 square feet exhaust fans can be sized according to the number of fixtures in the room.