Filtration class acc. to EN 1822:2009
a filtration paper built on the warp of glass fibres.
filter made of a pleated filtration material with aluminium foil separators or cotton thread separators, installed in a stainless frame made of galvanized steel, MDF or plastic, protected from the front with a fixed polyurethane seal.
air-conditioning systems in rooms subjected to very high requirements regarding the air cleanliness, as a final filter (e.g.: operating theatres, isotopic laboratories, electronic industry, etc.).
offered in standard and special dimensions.