So the recommended fan size would be 80 cfm.
Best bathroom ceiling vents.
Once you have read this article you will be able to use the information to choose a great bathroom ceiling fan for yourself.
Note this is for an average bathroom ceiling height of 8 0.
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Recommended minimum ventilation by bathroom.
Replacement fans should be installed in the same location.
For example a bathroom with floor dimensions of 8 x 9 72 sq.
To give you an idea of sizing this works out to one cfm per square foot of bathroom area and round up to the nearest 10.
The best place to install your bathroom fan is near or over your shower or bathtub unless your fan has a built in heater.
Double check the size of the current hole in your ceiling so that you do not undersize yourself and leave a visible space.
If you currently have a bathroom fan check your ventilation system.
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