Exhaust Fan Size For Bathroom

Small room bath fans perfect for a modest sized bath or powder room.

Exhaust fan size for bathroom.

For example for a 50 79 sq. Read on to find out more. Length x width square feet length x width x height cubic feet. An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 7 5 minutes.

Small room bath fans perfect for a modest sized bath or powder room. The size of your bathroom can help determine how many cfms you need. Here s how we get this number. The minimum allowed fan size is 50 cfm so if your bathroom is for example only 42 square feet you still need a 50 cfm fan.

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. But o brian suggests a simpler rule of thumb. For example if your bathroom is 80. A 50 square foot or smaller bathroom needs a 50 cfm 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. Determine the required cfm for your bathroom fan. If your bathroom is larger than 100 square feet tally the cfm requirements for the individual fixtures to estimate your needs.

For bathrooms between 50 and 100 square feet estimate approximately 1 cfm per square foot. Broan surfaceshield vital vio powered exhaust fan w led light antibacterial light. For example for a 50 79 sq. Some manufacturers recommend the number of cfms based on square feet or cubic feet.

Bathroom select a fan with a 50 to 80 cfm rating. 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. Higher ceilings would require a larger fan.

To arrive at your required cfm simply divide your bathroom s volume by 7 5. Sizing for large bathrooms for bathrooms over 100 square feet exhaust fans can be sized according to the number of fixtures in the room. Choose a fan that can move at least 1 cfm per square foot of room.