... ventilation system.2.Filter media made of fine glass-fibre.3.Above 85% average efficiency of filter media.4.Advantages: ... in electronics, precision instruments, machinery, metallurgy, chemical industry, textile industry, light industry, medicine, food and other departments and ... /h)Initail resistance(Pa)Efficiency(class)Model of filter mediaPoket numberZF-13-2495×295×600130012097%(ALBK)F9HTZ-034ZF ...