Bacterial-viral filter, mechanical without HME

Round, mechanical bacterial-viral breathing filter for adults without warm and moisture exchanger, weight 40g, breathing volume in the range 200-1500 ml. Bacterial-viral filter with 99.9999% filtration efficiency, dead space of 71 ml capacity, is available in a biologically clean version. Filters from this group are characterized by high efficiency of filtration against bacteria and viruses: 99,9999%.