1.3 ply non-woven face mask
2.High filtration efficiency: 98% - 99.9% (Tested and pass by Nelson Lab in america)
3.Soft, lightweight,Comfortable, odorless 
4.Form fitting design,Fiberglass free 
5.Latex free ear loops (option)
6.Non-irritating to skin,Permits air passage 
7.In clinical offices, housework, gardening and maintenance for filtering dust,
pollen, and bacteria
8.In laboratories and factories for blocking liquid mists, harmful airborne chemicals
and fine particles

Specification:
Material: 16/20g/m² PPSB+20/25g/m² meltblown PPSB filter +25/35g/m² PPSB

Dimension: a)17.5x9.5cm(for adult use) b)14.5x9.5cm(for children use)

4XTie length:38cm 2xloop size exposed 18.5cm
Color:blue,white,green,pink
Packing: 50pcs/box,1000/2000pcs/carton