Unless they've been remodeled along the way, most older homes don't have a nifty exhaust fan in the bathroom. Sometimes it can be a chore to add one, but they come in handy when you want to clear the air... :)
Adding a bath fan takes two major steps. First, is installing the fan and a switch to control it. The next step is venting it outside. You don't want it to vent into an attic space because the moisture in the air can cause mold or rot or numerous other problems. Don't worry, it's a fairly basic process, assuming you don't mind getting on the roof!
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