Renovating the bathroom and will be installing a bathroom fan. Granted, it won't be right now given the horrendous amount of rain, but I do plan to buy one this weekend.
My question is, what size one do I need? The bathroom has eight foot ceilings, and measures approximately 10 feet by seven feet. I've been looking in the Rona flyer and each fan lists how many sones it has. WTF are sones? And given this size of bathroom, how much CFM (or whatever the term is again) should the fan be?