銆怣ain technical indicators of the product銆?/strong> 鈥?5 layer 鈥?Hot air cotton 鈥?Water repellent non woven fabric 鈥?Moisture absorption non woven fabric 鈥?2 layer melt blown fabric 銆怚nstructions銆?/strong> 鈥?Let the nose clip towards outside, use hands pull each ear band to make sure the center of nose is up 鈥?Remove the sponge, stick it to the inside of the nose bridge bar inside of mask 鈥?Wear the KN95, make sure the chin inside the mask, use hands move the ear band to the back of the ear 鈥?Adjust until comfortable, make the mask fit the face 鈥?Use index finger and middle finger to press and adjust nasal splint until it on the bridge of nose 銆怱torage銆?/strong> 鈥?Keep in the environment of dry, well-ventilated and without light. Stay away from fire and pollution. 鈥?Storage temperature: -20掳C-38C Storage humidity: 銆怭roduct domestic qualification銆?/strong> 銆怭roduct export certificate銆?/strong> 銆怭roduct export certificate銆?/strong> 銆怲est report of customs銆?/strong>Customized 5 Layer KN95 website:http://www.dhx-dhx.com/kn95/5-layer-kn95/