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5 layer filter material for protective mask First, carbon sheet. The second layer is thick and dustproof. Layer 3, spit prevention, layer 4, fine fibers, air purification. Stock Vector | Adobe Stock
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Premium Vector | Protective mask for the n95 or kn95 filter material. the 5-layer filter system of the mask protects against viruses. bacteria and dust, pm 2.5, coated with antiseptic, fine fabrics
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Amazon.com: MERV 16 Filter Material, Filter Mask Insert Triple Layered Protection Nonwoven Polypropylene & Nanofiber, Efficiency Breathable DIY Design Media Roll, Easy to Cut Any Size : Tools & Home Improvement
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Amazon.com: MERV 16 Filter Material, Filter Mask Insert Triple Layered Protection Nonwoven Polypropylene & Nanofiber, Efficiency Breathable DIY Design Media Roll, Easy to Cut Any Size : Tools & Home Improvement
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UFI Filters erweitert die Produktion: ein Teil der Industrieanlagen wird zur Herstellung von Filtermaterial für Masken eingesetzt
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