4 ply ntsej muag lub ntsej muag muab rau koj qib siab tshaj ntawm kev tiv thaiv nrog 4 txheej ntawm ntaub. … Lawv yuav luag zoo ib yam li 3 daim npog ntsej muag tab sis nrog cov txheej txheem ntxiv kom ntseeg tau tias koj nyob twj ywm tiv thaiv nrog 99% cov kab mob thiab cov khoom pom.
Qhov txawv ntawm 3 ply thiab 4 ply mask yog dab tsi?
A four-ply daim npog qhov ncauj muaj ib txheej nruab nrab ntxiv uas ua rau cov kab mob ntxiv. Lub npog ntsej muag plaub-ply muab kev tiv thaiv ntau dua rau cov neeg hnav thiab yog qhov zoo dua piv rau daim npog peb-ply. Muaj ntau ntau xim (ntsuab, xiav, txiv kab ntxwv, dawb, grey) nyob rau txheej txheej txheem peb-ply daim npog qhov ncauj.
4ply mask yog dab tsi?
4ply daim npog ntsej muag tsim kom muaj kev nplij siab tshaj plaws, cov no daim npog ntsej muagtsis mob thiab kho tau, hnav lub ntsej muag lub ntsej muag lub ntsej muag ntev ntev yuav tsis tsim kev qaug zog lossis kev ntxhov siab rau koj daim tawv nqaij. … Cov qhov ncauj qhov ntswg pov tseg nrog cov ntaub tsis-woven sab hauv yog mos li cov khaub ncaws zoo nkauj, lub teeb, thiab ua pa.
Puas yog 4 ply daim npog qhov ncauj phais?
Lub npog ntsej muag 4 ply zoo li3 ply ntsej muag daim npog qhov ncauj nrog cov txheej ntxiv ntxiv nrog cov lim dej lim dej lossis ib txheej lim dej ntxiv. Lawv kuj muaj adjustable lub qhov ntswg strip muab siab tshaj plaws kev tiv thaiv thiab kev nplij siab rau cov neeg siv. Nws kuj tseem muab kev tiv thaiv cov ntxhiab tsw zoo li cov organic vapors.
Lub npog ntsej muag twg yog qhov zoo tshaj?
Qhov ncauj qhov ntswg zoo tshaj plaws rau cov neeg laus
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