Constant running bathroom fans

Constant running fans are designed to provide low levels of ventilation on a continuous basis and then, operate at high levels when the room is in use. This method has the advantage of ensuring the air in problem or enclosed rooms - i.e. those with no widows - is changed on a regular basis to prevent the build up of stale air or moisture. Due to the low level continuous ventilation provided noise issues are eliminated as they run at near silent levels ensuring they are unobtrusive in use for the house user.