The Drexel und Weiss systems are comfort ventilation systems which are combined with heat recovery. The heat exchanger module (also called de-alpine exchanger) needs filters which protect it from contamination and thus inefficiency. Replace the filters every 6 months to protect the system from dirt and expensive cleaning costs in the long term. Here you will find filters for the aerosilent systems as well as for the fresh air boxes (pre-filters). Order the right filters today and benefit from the best service.
