Description:

1. Direct manufacturers to guanrantee reasonable price and excellent quality
2. 4ply-5ply design to successfully prevent dust and bacteria

3. Material : pp nonwoven,, soft cotton, melt blown filter
4. With inhalation valve to avoid bacteria and dust
5. Packing 20pcs/box,400pcs/carton, as well as can be per customers require
6. We also have many other styles ,like no valve style, active carbon styles,adjustable ear band styles and so on...