... active-carbon can protect against dust,mist,paint,acid-gas,organic-gas,Hg vapor,ammonia,sulfureted hydrogen,et TPR frame of ... double active-carbon can2.protect against dust,mist,paint,acid-gas,organic-gas,Hg vapor,ammonia,sulfureted hydrogen,etc.3.CE approval ... Certified Picture Certification Name Certified By Certificate No. Product Name & Model No. Available Date-Expired Date ISO 9001:2008 CQM, CNAS ...