Filters

Replacement filters for Brink MVHR units. G4 coarse filters for general dust and insects, F7 fine filters where pollen and finer particulates matter — worth fitting on the supply side if anyone in the house has hay fever or asthma.

Filters are the one part of an MVHR system that needs your attention after handover. As they load, resistance rises; a constant-flow unit compensates by working harder, which costs electricity and makes noise. Left long enough, flow rates drop below the design figures the system was commissioned to.

Check the model and size against your unit before ordering — a Flair filter will not fit a Sky, and the 300 and 150/200 sizes are not interchangeable.