1.have ISQcertification 2.produce 1py-4ply disposable face mask 2.weight:20+25+20gsm 3.BFE>95% 4. ... specification:17.5*9.5cm Features of disposable face mask:material: 3plys, ear-loops; outer cover fabric:20g (100 ... ,Changan Town,Dongguan City,Guangdong Province,China. non-woven disposable face mask