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A G4 filter with upgraded odour removal that will fit on the circular inlet in the top of your HRV system.


The G4, odour removing sock filter DIY installation pack for inlets up to 250mm. The pack includes the “Ventsure” replacement filter, ties for securing the new filter and easy to follow DIY instructions.

This filter is made from internationally rated G4 filter material and is impregnated with activated carbon to remove odours. The filter is designed to prevent odours being introduced to your home from the roof space or outside

The life of this filter is hard to measure because it depends on the strength of the odour and amount of air that passes through your system, but in normal service should last around 6-12 months. You will notice when the filter needs replacement when the odour returns.