Airstar Filter Kit
Summer cartridge with pollen filter.
Good for allergy sufferers.
Airstar summer box with pollen filter fits all Airstar FTX units
The pollen filter cartridge is used during the warmer part of the year and reduces the content of pollen particles entering the house, for allergy sufferers etc.
The heat exchanger cartridge is removed and replaced by the pollen filter cartridge instead, which has filter class F 5.
The pollen filter cartridge has no heat recovery.