How to use: Check the top and bottom of the mask and spread the mask left and right.Pull the mask over your ears while pulling on the earFinely adjust to fit your face perfectly. Caution: Due to individual differences, glasses may become foggy, so please be careful when driving.This is a new item.Not reusable.If you pull too much over the ear loop, it may become loose.This product cannot be used in places where harmful dust or gas is generated.In the event that symptoms such as itchy or cabretta occurs, please stop using this product immediately and consult a physician.If you feel uncomfortable due to the smell, please discontinue use.Keep out of reach of infants.Avoid storing in high temperature and humid environment.Do not use near fire. Material: Main Body/Filter: Polyolefin / Polyester; Ear Straps: Polyolefin / Polyester.