General purpose mask, reusable. It has a three-layer structure, made of cotton fabric. In the meantime, there is no need to worry about it. ” The inner layer provides high breathability and comfort. The middle layer delays the penetration of microdroplets. The outer layer is treated with antibacterial and water-repellent impregnation, creating an additional barrier. Opening folds and nose wire ensure a snug fit.The DET30 ™ mask is not a personal protective equipment, does not replace medical and surgical masks or respirators.   Not applicable to infected people or in a clinical setting. In the meantime, there is no need to worry about it. ” DET30 ™ Meets Non-Medical Barrier Mask Standard AFNOR SPEC S76-001: 2020.