10/20/100pcs Mask Filter Piece Non-woven Fabrics Three Layers Of Protective Air Filtration Disposable Replacement Sheet

Disposable Mouth Mask Gasket: One time use.

Keep the inside of the mask clean.

Extend the use time of mask.

Breathable comfortable.

Widely using In the restaurants, nail shops and cleaning as well as other environments that require respiratory protection for dust etc.