Dada Disposable Protective Face Masks are single-use medical masks that offer high protection through a 3-layer filtration system. Each box contains 50 individually packaged blue masks that meet the GB/T 32610-2016 execution standard for safety and quality. Key features: • 3-layer filtration system • High protection design • Breathable material • Single-use disposable • 50 masks per box • Individually packaged The masks comply with GB/T 32610-2016 safety standards. Each mask features elastic ear loops for secure fitting and comes in a convenient single package format. The blue color masks are designed for one-time use only and should be properly disposed of after each wear.