The “F” range filters for extraction and deodorization of soldering fumes, has been designed and realised allowing a modularity in the filtering devices which greatly extends their field of use. Designed for the electronics industry for the extraction of fumes from work positions, up to 12,( F 1200), wave soldering devices, soldering pots, they are also used in the chemical-pharmaceutical sectors, gold industry, vocational schools. Filtering takes place through three different work stages and increasing efficiency, monitored visually by the differential pressure switch or through a re-usable filtering cartridge; in this version the differential pressure switch is supplied as an optional. In the version with activated carbons, the latter cannot be regenerated and must be changed regularly.