... , 25/25/28, 25/25/25, 28/25/28MATERIALSOFT PP NON-WOVEN, Meltblown PP can filter effciently, BFE above 98%ADVANTAGEECO-FRIENDLY & LOW ... /ctnPAYMENT TERMST/TLOADING PORTSHANGHAI , NINGBOREMARK:THE METERIAL, COLOR, SIZE ETC. CAN BE DONE ACCORDING TO CUSTOMERS REQUIREMENT. NONWOVEN DISPOSABLE MOUTH MASKS ...