pm2.5 mouth mask 99% filtration mask for dust particles pollution light blue

sanitary and convenient for using. made of material, safe, soft and comfortable. prevent droplet & 99% filtration: by covering the mouth and nose, it prevents droplets from spreading. simple steps for wearing. effectively protect you, especially when you are outdoors. one size fits all: elastic straps and adjustable nose clip for different face shapes and sizes. wide application: both home and professional use, perfect for daily use, outdoor and hospitals.