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  • dust mask respirato with valve weini f820 low expiratory resistance

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10Pcs 3M 9001 KN90 Dust Masks Respirator Anti-dust PM2.5 Industrial Construction Pollen Haze Gas Family & Pro Site ProtectionUSD 4.69/piece 3M KN95 Dust Mask Respirator Headset 6200+2091 Anti-particulate Filters Anti-Dust Mask Anti-fog And Haze PM2.5 Protective MasksUSD 5.50-19.99/piece 3M KN95 Dust Mask Respirator Headset 6200+2091 Anti-particulate Filters Anti-Dust Mask Anti-fog Respirator masks protect health but impact performance: Respiratory protective masks are used whenever it is too costly or impractical to remove airborne contamination from the atmosphere. Respirators are used in a wide range of occupations, form the military to medicine. Respirators have been found to interfere with many physiological and psychological aspects of task performance at levels from resting to maximum exertion.Selection Guide - softsealmask, dust mask respirato with valve weini f820 low expiratory resistanceC. Filter Mask V-Fold Environments: Ideal for Mold, Pollen, Dry Walling, Wood Sanding & Cutting, Gardening, Fiberglass Insulation, Agricultural Grain and Hay Dust, Fertilizing, Pet Dander; CoolTech valve lowers mask air temperature, moisture and expiratory resistance; Bacteria Filtration Efficiency (BFE) 99% at 3 micron

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