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![PM 2.5 Filtered Replacements [10-PACK]](http://cdn.shopify.com/s/files/1/1201/2664/products/z-L-REP-MASK-021-FILTER-10PACK-3_{width}x.jpg?v=1590737196)
![PM 2.5 Filtered Replacements [10-PACK]](http://cdn.shopify.com/s/files/1/1201/2664/products/z-L-REP-MASK-021-FILTER-10PACK-4_{width}x.jpg?v=1590737196)
![PM 2.5 Filtered Replacements [10-PACK]](http://cdn.shopify.com/s/files/1/1201/2664/products/z-L-REP-MASK-021-FILTER-10PACK_{width}x.jpg?v=1590737196)
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PM 2.5 Filtered Replacements [10-PACK]
PM2. 5 filters are shown to be effective in blocking the vast majority of airborne particulates, even the very smallest nanoparticles. The PM2. 5 name comes from these filters' original use as protection against Particulate Matter 2.5, the smallest and most dangerous form of air pollution.