POPLIN 100% cotton Weight: 120 gsm UNS 1 certification (DGA) washable up to 30 times (ref: 2000305) Use : The wearing duration is limited up to 4 hours Filtration: Particles Filtration efficiency of 3 μm =95% Breathability: Test of air permeability > 96 L.m2.S-1 for a depression of 100 Pa Washable anti-projection woven face mask with 3 layers Elastic bands behind ears Great breathability and filtration
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