Face Mask Disposable Filter Inserts， 40 / Box， White， Non-woven Fiber， Carbon， Fabric

These disposable inserts for adult face masks help maintain protection and keep it fresher. They are designed for face masks (not included) with slot for a filter. Five-layer structure delivers effective protection. Layers include nonwoven fabric， melt-blown filter fabric， activated carbon， melt-blown filter fabric and nonwoven fabric. Breathable material is soft and offers a skin-friendly texture so they are comfortable to wear.