@howyourhouseworks.au: Stop switching the bathroom fan off straight after your shower 🚿🖤 A 10 minute shower puts about half a litre of water into the air, and even with the fan on, about half of it lands on your walls and ceiling, where mould grows on the damp. The Home Ventilating Institute says leave the fan on 20 minutes after every shower, which costs less than 1 cent for a 40 W fan. Test yours: hold a sheet of toilet paper to the running fan and let go; if it falls, switch off at the circuit breaker, unclip the cover, wash it and let it dry, and if it still falls, get the duct checked. No fan? Open the window while you shower and after. #bathroom #mould #cleaningtips #homehacks #howthingswork