KN95 face mask 1pcs

Product Function: Antibacterial and antiviral respirator mask KN protection class, 95% effective filtration Ultra-low respiratory resistance Effectively block pathogenic and harmful substances and pollution in the air (spatter, exhaust, coal, droplets, formaldehyde, pollen, dust, PM2.5) Multi-layer material conforms to the structure, which guards the breathing layer and effectively blocks the fine harmful substances