Xpelair Extractor Fans

Look at the airflow you need. The 100mm fans on the page typically sit in the 20-30 L/s flow range and suit small bathrooms or en-suites, while the 150mm models generally offer 61-70 L/s and are better for larger family bathrooms or when you have longer duct runs. a compact en-suite of 2-4 m2 will be fine with a 100mm fan such as the DX100 range, but a 6-8 m2 family bathroom is more comfortable with a 150mm Contour or DX150 model for quicker moisture clearance.

Yes, the Simply Silent range is designed to reduce noise, and our range groups models into noise bands so you can match how quiet you need them to be. Aim for a fan with a noise rating in the 21-30 dB band if your bathroom shares a wall with a bedroom; that level is unlikely to disturb sleep. If noise is less critical, there are options in the 31-40 dB and 41-50 dB bands that typically give higher airflow.

A humidistat detects rising humidity and runs the fan automatically until levels drop, while a timer keeps the fan running for a set period after you switch it off to clear lingering moisture. models in our range with "Timer & Humidistat" (DX100HTS and C6HTS) combine both, which is most effective at slowing mould and mildew growth because the fan only runs when needed and clears residual dampness afterwards. If you want hands-off humidity control, choose a humidistat model.

The shape is mainly aesthetic and affects how the grille looks on your wall or ceiling; contour models have a sleeker, curved face for a modern look, square and standard designs are more traditional. Performance is driven by size and motor specification rather than shape, so you'll see both square and contour options across the 100mm and 150mm performance ranges. If you have a shower area, there's a purpose-labelled round shower fan (DX100BT), which combines the appropriate performance with a shower-friendly appearance.

Higher prices on the page generally reflect additional features such as larger 150mm motors, combined timer and humidistat controls, contour styling or higher flowrates. C6HTS (a 150mm Contour with humidistat and timer) sits above the basic DX100BS 100mm standard model because it delivers greater airflow and automated humidity control. If you need fast moisture removal or automatic operation, the extra cost brings clear functional benefits; for a small, occasional-use ensuite the cheaper 100mm standard models remain a sensible choice.