I was looking at a house and the bathrooms appear to have no exhaust fans. It does have these little things that look like they might be vents of some sort. Could they be sufficient for ventilation to remove moisture, with no apparent fans? The house is from the 80s. There are no windows in the bathrooms.
Best Answer
Sure, could be an exhaust fan...but it could be a supply fan too.
To check, tape a piece of paper over about half the vent opening and wait for the fan to come on. Does it blow or suck?
Btw, look under the toe kick of the cabinet to see if there’s another vent.