We produce filter for rough cleaning for precleaning of supply air. This filter group is represented by filters of G2-G4 classes according to EN779. These filters are used, as a rule, in the inlet and protective equipment for supply air from impurities. The mesh filters of ÔÿÐÁ and ÔÿÂÁ, panel PPF filters, goffered PGPF and pocket PF filters of G3-G4 classes belong to this group.
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