- Ideal for any environment: suitable for adults and children of all ages. It can be used in outdoor public areas, schools, offices and homes. -Three-layer mask: Such a large number of masks should convince you that they will not run out soon. This mask is for general use only and is not suitable for medical use. -3-layer sanitary filtration: 3 different layered fabrics that provide strength and protection. These include the cotton inner layer, filter middle layer and non-woven outer layer to provide excellent. -Easy breathing and extra comfort: The design can be worn for hours without hurting the ears. The fully adjustable nose clip fits your nose comfortably. -Disposable mask: Designed for air permeability throughout the day, Please note that disposable masks cannot be washed or reused. USA MADE !!! ACCPETING BULK ORDES !!!