Features5 LAYER CONSTRUCTION: Constructed with 5-layers of filtration for optimal protection for a comfortable feel that easily fits on the faceBEST FOR PROTECTION: Our mask is engineered to provide a greater level of protection than a 3-Ply or 4-ply maskGREAT FOR TRAVEL: Our mask is highly portable as it’s both lightweight and foldable which makes it ideal for traveling40 PACK: Includes twenty (40) disposable Mask respirator masks. We recommend that you dispose of the mask after each use