
Lighting and fans
Bathroom lighting and ventilation in Butler County
Good light at the mirror and a fan that pulls the steam out.

Code wants an exhaust fan vented outdoors when there is no window that opens. A fan that dumps into the attic grows mold.
Lights on both sides of the mirror, not only above it, so your face is not in shadow.
- 01Fan size
About 1 CFM per square foot of floor, more for a large room.
- 02Humidity sensor
Switches the fan on when the room fogs up.
- 03GFCI
Every outlet in a bathroom needs GFCI protection.
In the price tool
Price it, then see it
- 01The price, one line at a time
Plumbing, tile, the vanity, glass and the permit, each priced from what Cincinnati area trades are paid.
- 02Pick your bathroom
Walk in shower, tub with a shower, a primary bath or a powder room. Start from the one that matches yours.
- 03Design it in 3D
Choose the vanity color, the shower glass, the wall tile and the fixture finish, then turn the room around.
Lighting and fans
Lighting and fans questions
01Do I need a bathroom fan?
Yes, unless the room has a window that opens. It has to vent outside.
02How big a fan do I need?
About 1 CFM for each square foot of floor.
03Does a new fan need a permit?
Usually, since it needs wiring and a duct.
No visit needed to see it
Price it with your own picks
Vanity, tile, glass, fixtures. Every choice changes the number.


