Specifications: 3701CN particulate filter cotton effectively filter dust, 95% Fit for : decoration, sanding, cutting, coal mine work, woodworking, mining,foundry, metal smelting and grinding dust workshop generated by operations such as protection Package Includes： 1 /2 x 3200 Face Mask 1 /2 x 3700 Filter holder 10 /20 x filter cotton.
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