Bathroom Fan Cfm Requirements. The cfm represents the airflow required to completely exchange the air in your bathroom 8 times in one hour. How to install a bathroom vent fan. Don t let moisture ruin your beautiful new bathroom.
Each fixture toilet shower stall bath tub requires 50 cfm jacuzzi hydro spa whirlpool 100 cfm. This is how often your extractor fan should be able to replace the bathroom with fresh air.
This is how often your extractor fan should be able to replace the bathroom with fresh air.
Calculate how many cfm your bathroom fan needs by dividing the number from the step 2 by 7 5. How to install a bathroom vent fan. In older homes without bathroom ventilation a fan light combo like the 80 cfm fantech fq series quiet ventilation fan available from supplyhouse can be installed in place of an existing ceiling. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.
