keep humidity and smells out of the rest
of the house, you should have
a working bathroom
fan that exhausts air to the
some communities, if the bathroom
have a window, it is a code requirement.
When shopping for a bathroom
- capacity - measure the volume of air in the room
(square footage times the height of the ceiling)
and then divide by 15; the fan should be
able to move at least this amount of air
per minute (described as CFM), more if you
want to clear the air faster. If the room
vent is covered by zoning regulations, make
sure that the fan meets the regulations.
- noise level - generally, the more air the fan moves,
the louder it will be; noise generated by
a bathroom fan is not considered a major
concern unless it is extremely loud. Keep
in mind that too quiet of a fan can be a
drawback for two reasons: the fan may accidentally
be left running and some noise (referred
to as "white noise") is desirable
to mask other sounds.
- mounting size and vent connection - make sure that there is room for the fan
to be installed in the ceiling or wall along
with the ventilation pipe.
Don't forget that the bathroom needs a source
of air to replenish the air drawn out by
the fan or else the fan will not work properly.