Talk:Mould
Ventilation fans
Ventilation fans can be controlled manually, or by a timer perhaps started by switching on the bathroom light, or by a Relative Humidity (RH) sensor. John Stockton (talk) 16:45, 25 January 2016 (UTC)
Ventilation fans can be controlled manually, or by a timer perhaps started by switching on the bathroom light, or by a Relative Humidity (RH) sensor. John Stockton (talk) 16:45, 25 January 2016 (UTC)