Half respirator mask, 7500 series, from 3M, acc.EN 140 , silicone, M, 1 unit(s)Half respirator mask, 7500 series, from 3M, acc. EN 140 , silicone, M Material: silicone. Acc. to EN 140 Made of skin friendly silicone Robust and extremely comfortable With drop down strap for quick up and down adjustment and for wearing the mask around the neck during breaks Reduced breathing resistance thanks to Cool Flow exhalation valve and double filter system Good weight distribution Easy filter assembly using bayonet connection Exchangeable