Nanotechnology Mask

Nanotechnology Protective Mask is made of special fabric and two layers of fabric with filter 7 layers of extreme protection, easily adapts to different sizes with adjustable straps and features to ensure a snug fit. Filters should be replaced every 10 days. Fits adults and kids ages 7 and up when using PM2.5 Filter.
• Tech Mask Good for Sports and Outdoor Activities
• One Size
• Adjustable nose
• Adjustable straps
• Machine Washable / Wash Hot / Dry Hot with detergent of your choice