01/09/2026
dMEV or a standard extractor fan — which should you be quoting?
They might look similar, but they work very differently.
A standard extractor generally runs when it’s switched on. A dMEV fan provides continuous low-level ventilation, boosting when additional extraction is required.
For the right application, dMEV can offer some significant advantages:
🔵 Continuous background ventilation
🔵 Better control of condensation and excess moisture
🔵 Helps reduce the risk of damp and black mould
🔵 Improved indoor air quality
🔵 Quieter everyday operation
🔵 Lower running costs
🔵 Well suited to modern, more airtight homes
With condensation and mould becoming an increasing concern in properties, it’s worth considering whether a standard intermittent fan is still the best solution for every job.
We stock dMEV options from a range of leading ventilation manufacturers and can help you choose the right model for the application.
Not sure what to quote? Send us the room details and we’ll help you specify the right ventilation solution.