Control moisture at its source
Use the extractor during bathing and leave it running for the designed overrun period. Keep the bathroom door closed while steam is highest so moisture does not spread through the home.
Wipe heavy water from screens and very wet surfaces. Hang towels where air can move around them rather than leaving them folded in a damp room.

Make sure extraction works properly
An extractor must be appropriately sized, correctly ducted and supplied with replacement air. A fan can sound active while moving little air through a long or restricted duct.
Clean accessible covers as recommended and check outside grilles are not blocked. Electrical work and fan replacement should be handled by a suitable professional.
- Use the fan every time
- Keep grilles clear
- Allow air into the room
- Investigate persistent condensation

Keep the room reasonably warm
Cold walls and windows attract condensation. Consistent background warmth can help surfaces dry more effectively than a short burst of heat after bathing.
Use the heated towel rail for drying only as designed and avoid covering room heating completely. The heating plan should suit the room size and level of insulation.

Deal with the cause, not only the stain
Small surface patches can often be cleaned with a suitable product while following its safety directions. Repeated growth may point to weak extraction, leaks, failed sealant or a colder hidden area.
If mould is extensive, returns quickly or appears with damaged surfaces, seek appropriate advice. A bathroom renovation should correct moisture management rather than simply cover the evidence.

