*50-Pieces* 3M Procedure Face Mask Reduces Fluid & Microorganisms Exposure 1820 Features:3M Procedure Mask.With Ear Loops.Reduces Exposure to Fluids & Microorganisms.Blue. Package Includes:You Get 1 Box With 50 Masks. 3M Model#:1820 Returns are accepted within 30 days of delivery. All returned items must be exactly in original condition.