1.Direct manufacturers to guanrantee reasonable price and excellent quality
2.3ply-5ply design to successfully prevent dust and bacteria
3.Material :pp nonwoven, active carbon(optional), soft cotton, melt blown filter, valve(optional)
4.With inhalation valve to avoid bacteria and dust
5.Packing 20pcs/box,400pcs/carton, as well as can be per customers require
6.Certificates ISO/CE etc relative certificates & test reports.
7. we also have many other styles ,like no valve style, active carbon styles,adjustable ear loop styles and so on.