Bulk PM2.5 Activated Carbon Filter Mask Inserts 5 layers - 100 Pack Quantity:1000 Pieces A classic option for all

A classic option for all advertising and business stationery

restaurant

it has super absorbent power

Specifications:

Bulk PM2.5 Activated Carbon Filter Mask Inserts 5 layers - 100 Pack Quantity:1000 Pieces A classic option for allBulk PM2. 5 Activated Carbon Filter replaceable Anti Haze Masks Filter Protective Health Mask 5 layers Insert Filters 100 Pack 5 Layers Function: First layer: spunbond cloth, filter the dust of micron Second layer: to filter industrial pollutants, automobile exhaust, second hand smoke pollen allergies Third layer: activated carbon cloth, benzene and a smaller function of filtering dust microns Fourth layer: filter density, smaller material Fifth