Airflow BV400 fine filter
1 x F7 fine particle filter
Fits Airflow BV400 Unit
This is a fine grade F7 filter designed to prevent small and often invisible particles such as pollen spore bacterium and dust particles, from entering the home.
Courser G4 filters are also available designed to filter larger items such as insects, small leaves and other airborne debris- see model reference 90000322