5plys 99% Filtered Facemask with Valve

Product Name: 5plys 99% Filtered Facemask with Valve Shape: Dust Mask Mask Type: Safe-Type Color: White Material: Superfine Fiber Mask Application: Welding Mask Payment: Tt Trademark: FFP3 Transport Package: 5PCS/Box 100PCS/Carton Specification: 9980V FFP3 Origin: Hangzhou Product Description 5plys 99% Filtered Facemask with valveProduct DescriptionProduct detailsFCA1. Personal protective equipment whose purpose is to prevent or reduce dust in the air from entering the human respiratory organs to protect the safety of life;2. Material: The anti-particulate mask is mostly made of two layers of non-woven fabric inside and outside, and a filter cloth (melt-blown cloth) in the middle;3. Filtration principle: The filter dust mainly depends on the filter cloth in the middle. Because the melt-blown cloth has its own electrostatic characteristics, it can absorb positive small particles. Since the dust is adsorbed on the original filter, and the original filter can not be washed with static electricity, the self-priming filter anti-particulate respirator needs to replace the original filter regularly