MAS passenger load down due to hazeLong Hui Ching
本发明公开了一种高透气性防PM2.5,防雾霾,防病毒,防病菌的亚纳滤膜口罩. The present invention discloses a high permeability anti PM2.5, haze-fog, anti-virus, anti-bacteria Mariana filter masks. 所述口罩的外形为长方形,它由外表层,中间高透气性聚合物超薄亚纳滤复合膜滤芯及内表层构成口罩的主体,其...