European CE Certificate: EN 149, FFP1, FFP2, FFP3, CE 0194

American N95 Certificate: NIOSH N95

Australian Certificate: AS/NZS1716 P1 P2

Features and Usage

The fold flat high filtration dust mask with exhalation valve is more suitable for high temperature, high humidity and sultry places. Suited to subway tunnel, underground working, chiseling cave, sea and river tunnel, mining, coal industry, building, casting, grinding drugs, agriculture, gardening, forestry, livestock husbandry, electronic and eletrical appliances manufacturing industry, meter and instrument manufacturing industry, alumium working, food processing, cement works, textile mill, hardware factory, metal burnishing, polishing and cutting, disintegration engineering, smashing... etc. It can prevent harmful pollutants such as nonferrous metals, heavy metals... etc and separate harmful material such as glass fiber, asbestos... etc.

more others see below:

http://cam.en.china.cn/product/202160393-200071136/Net_Surface_Dust_Mask_DS_DAC4N_APRROVED_BY_NR_GOGGLE_N95_N99_FDA_AS_NZS1716.html