BFE&PFE>95% Conform to CE Standard Ø Three layers, each layer is made of soft Polypropylene (P.P.) inner layer, reduce the fiber drops and increase the wearing comfortØ The filter layer is made of high efficient melt blown web which resists dust and oil-free particleØ Face shape design, cool head straps for comfortable wearingØ Suitable to textile, mining, construction, electronic, food ...