Airflow DV110SE Ventilation Unit filter 2 x G4 and 1 x F7 vent-axia-filters-cat-56 UPG) which is designed to

UPG) which is designed to filter the same particles but at a higher efficiency of > 60%

a on constant)

Aluminium flexible ducting 150mm or 6" - 10m length

For the Humidistat this means there is no no fixed humidity point for activation

A fan which has been designed to be totally flexible and multi functional

Airflow DV110SE Ventilation Unit filter 2 x G4 and 1 x F7 vent-axia-filters-cat-56 UPG) which is designed toAirflow DV110SE filter 2 x G4 and 1 x F7 G4 filters are of courser grade and designed to prevent insects, leaves and other small debris from entering the home. F7 Filters are fine grade and designed to capture small and often invisible particles such as pollen spore, bacterium and dust.