The 3D design allows for a snug fit around your nose and mouth for better protection three layers and a slot for you to add your own protective filter.
Three layers- 1st layer(print)-30/1 poly cotton 2nd layer- interlining 3rd layer- 30/1 100% cotton.
*Made in USA.* machine wash. Dry flat.
Not medical grade. Wash before use. Due to sanitary reason all sale is final