Airflow BV400 Ventilation Unit filter 2 x G4 material 90000322

Airflow BV400 filter 2 x G4 material 90000322
This is a pair of courser grade G4 filters designed to prevent particles, insects and other airborne debris from entering the home.

F7 fine filters, used to catch small and often invisible particles such as pollen spore bacterium and dust are also available - see model reference 90000323