3 Layer Disposable face mask (non-woven fabric, fltier, skin-friendly non-woven fabric). This includes 20 masks in one pack. 
High B.F.E an P.F.E filtration        
Disposable face masks to protect against dust
Perfect mask when travelling through congested airports, bus terminals, malls, parks, and busy city streets
Great for painters, construction workers and many other occupations
Fluid Resistant, Perfect Fitting and High Breathability
These disposable masks have elastic ear loops
Mask with metal in nose position for better fit
Extra Soft for Maximum Comfort
Comfortable fitting and easy breathing                                            
High elasticity ear hook
Recommendly change it every 4 hours.