Woot has 50-Pack of KN95 5-Layer Face Masks in white, model no. WCL-0075, for $14.29 for a limited time. Shipping adds $5 or is Free for Prime Members.
These KN95 features 5-Ply: 2 layers melt blown fabric, 2 layers PP non-woven fabric, 1 layer hot air cotton. Ear loop style with bendable nose clip.