The KN95 Face Mask offers 5-layer protection, 6 packs of 10 per box, making it ideal for use in various environments such as in the process of grinding, sawing, cleaning, bagging dust, sanding and sand paper grinding, They can also be used in environments of welding, cutting and other operations involving metal heating. May also be used during the processing of ores, coal iron ore, flour, metals, wood and certain other substances. Originating from China, this model is also designed for cosmetology purposes, ensuring a secure fit and filter efficiency. Each box includes 6 packs of 10. 3 cosmic colors, included of the KN95 masks, for a total of 60 masks per box for long-lasting protection.