How does an extractor fan work? The mechanics of this ventilation basic

A blowup diagram of an extractor fan and all the parts inside
An extractor fan, also known as an axial-flow fan, operates by creating a flow of air (Image credit: Quiet Mark)

Damp can cause huge problems and needs to be displaced from kitchens and bathrooms – but how exactly how does an extractor fan work?

Mould in rooms with high levels of moisture looks awful, can produce a nasty smell, damage your windows and fixtures, potentially spread across paint, wallpaper, and plaster, and cause respiratory health problems.

Sam Webb

Sam is based in Coventry and has been a news reporter for nearly 20 years. His work has featured in the Mirror, The Sun, MailOnline, the Independent, and news outlets throughout the world.  As a copywriter, he has written for clients as diverse as Saint-Gobain, Michelin, Halfords Autocentre, Great British Heating, and Irwin Industrial Tools. During the pandemic, he converted a van into a mini-camper and is currently planning to convert his shed into an office and Star Wars shrine.