50 Pack mouth masks: package includes 50 pack fashion disposable face masks, large quantities are enough to meet your demands | 3 Layer dust mask construction: made of non-woven fiber fabric with 3 layer, soft and breathable, provides a effective protect | Best size for you: Our face masks are suitable for adults and children | Elastic ear-loop: which can be adjusted its tightness; One size for most adult men or women | Widely used: Used for outdoor cycling enthusiasts, home decoration, all the filter efficiency indicators are above 99%, effective dust prevention, PM2. 5 industry, irritant gas, haze, particulate matter, allergy, pollen, automobile exhaust, etc.