We believe that the thought of stepping outdoor should not come with a compromise. So we bring the Nanoclean N-95 mask is carefully crafted with lightweight and ultra-soft material to provide you with a healthy and comfortable breathing experience throughout the day. ISO certified, CLI and ITS lab-tested mask filter up to 99% PM 2.5 from the air and enables you to breathe toxin-free. Key features: -N-95 graded anti-pollution mask with 5 layer filter protection -More than 80 hours of protection from harmful chemicals suspended in the atmosphere -CLI and ITS labs tested -Designed with nanotechnology and ultra-smooth fabric -Self-adjustable straps for comfortable all-day wearing -Reusable and washable multiple times