Guard Well Mask® (SH-5094) The three-ply mask offers 98% bacterial filtration efficiency making it the users' choice for all major surgeries. A super-smooth soft ultrasonically welded mask is most comfortable during use. Flexible nose clip for proper positioning on the nose bridge. Dispo Mask™ (SH-5072) Double layer mask offering excellent bacterial filtration efficiency. A super-smooth soft ultrasonically welded mask is most comfortable during use. Flexible nose clip for proper positioning on the nose bridge. Care Mask (SH-5072-01) Sterile Disposable mask Individually packed