Disinfecting Type: OZONE Size: Adult, Adult Type: medical mask Stock: Yes Shelf Life : 3 years Quality Certification : Niosh Safety standard : Niosh Instrument classification : Class II Material : Non-woven fabric and Melt blown fabric Applicable People : Adult Standard : Niosh, Niosh n95 Filter Rating : 95% Filter efficiency level Product Name : Folded Medical Mask N95 Particulate Respirator Colour : White Shape : Fold/head loop MOQ : 1000 Package Description : 1pc/bag,10bags/box,100boxes/ctn Customized Service : Accept Particulate Filter Efficiency : 95%