Disposable face mask Medical device EFB bacterial filtration efficiency > 98% 3 ply mask Nose bridge Excellent filtration Fiberglass free Latex free Non sterile 17.5x9.5CM Type II EN14683 Differential pressure: ?P < 40 Pa 50pcs
less than 120 => CHF 6.90
Between 120 & 170 => CHF 3.90
More than 170 => FREE!
