The filters are tested in accordance with the ISO 11155-2 standard for removal of indoor and outdoor gaseous contaminants.
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Properties
The side covers of the filter are made from rigid plastic with integrated water outlet slopes on both the up- and down-stream sides. Connection slots for the insertion of the pre-filter frame HFA-# are also included. These features, in combination with the reinforced profiles, provide maximum space for the filter media pack and obtain a high mechanical strength. The filters are supplied with a flat flange and an optional endless gasket creating a secure seal between the filter and each standard pre-filter holding frame.
