... -gas,Hg vapor,ammonia,sulfureted hydrogen,et TPR frame of chemical respirator1.with double active-carbon can2.protect against dust,mist ... vapor,ammonia,sulfureted hydrogen,etc.3.CE approval gas mask chemical respirator Verified Information This information is Verified by Bureau Veritas ... /31 CE DIN CERTCO GmbH C3861YUDU Frame for ocular and filter & 78140 2007/11/26 --- 2049/12/31 CE DIN CERTCO ...