If you want the bathroom to last a long time, you must have good ventilation. Heating the bathroom properly and having good ventilation will ensure that your new bathroom lasts a lifetime.
You have two options for extractor fan.
- Standard extractor fan
This is usually drilled straight outside the room. It can work with a timer, normal switch or humidistat. - Inline extractor fan
This is better since you can position it above the shower where the main source of steam is. It can work with a timer or a separate switch/lights. They can be much more powerful than the standard extractor fans (but this power diminishes the longer the pipe to the outside is).