Adequate ventilation should be provided to ensure the room has sufficient fresh air, and to remove moisture after showering, if applicable. Supplementary natural ventilation (for example windows) may also be beneficial.
If a ventilation extract fan is provided, it should be as quiet as possible in operation as the noise can cause distress to some people and can be a barrier to communication.
Placement of heating, ventilation and air conditioning fans should be considered so the airflow is not blowing air on top of a user. For example, avoid locating the fans over the changing bench and WC where a user can be positioned for long periods of time.