Description :<br>3M 9913V N95 Anti PM2.5 Folding Particulate Respirator Mask With Valve<br>Specification :<br>Brand Name : 3MModel : 9913VStandard : USA N95Colour : GreyStyle : Head-mounted<br>Function : PM2.5， Prevent formaldehyde， Secondhand smoke， Dust-proof and Germs...Suitable for dust prevention in mining， cement factory， ceramics factory， shipyard， metal smelting， power plant， stone processing， polishing， interior decoration， powder processing operations produce.<br>Package includes :<br>1 x 3M 9913V PM2.5 Folding Particulate Respirator Mask<br>Details pictures :<br>                    <br>                                                <br>    3M Mask (NO dust come out)                                             General Mask (Can't really stop the dust effectually)