If you have a glass shower door, leave it open so it can air out. If you have a shower curtain, pull it closed after you finish since mold and mildew can form if you leave it pushed to one side.
Hang up any towels you use in a different room since they won’t dry out as quickly in your bathroom.
Keep a window open in another room so the air from your bathroom has someplace to escape.
Some ceiling vent fans have built-in lights so you can use them as another lighting fixture in your bathroom. Ceiling vent fans can cost around $100–200 USD for the unit, but hiring someone to install new ductwork could cost upwards of $2,000 USD.
Use a floor duct vent and a ceiling vent to circulate air through your bathroom faster. The cost of a floor duct fan depends on if you already have ductwork in your floor and how it needs to reach for an exterior wall, but it usually costs around $1,500–2000 for the unit and ducts.
Air may blow inside through a wall vent, so install an exterior vent cover over the outside of the vent to help prevent backdrafts. Wall vents usually cost less than $1,000 USD to completely install.
Replacing and installing new ducts requires a lot of work inside your walls. Get estimates from professional HVAC contractors when you want to replace or install new vents so you don’t damage the system. The cost depends on the length of the ducts, the size of your new ducts, and the cost of labor.
Check the building codes in your area since using recirculating fans might not be allowed. Recirculating fans usually cost between $50–200 USD.
Most building codes require any exhaust vents to lead directly outside.
