It's a 2-minute-finish article, there’s a summary in the end of the page if you're really lazy to read all. 3M 8210 is the most classic and popular N95 disposable respirator in the world, helps protect against certain particles such as those from grinding, sanding, sawing, bagging, or processing minerals, coal, iron ore, flour, metal, wood, pollen, etc. It provides at least 95% filtration efficiency of non-oil based particles with NIOSH (National Institute for Occupational Sa