Choose A Medical Mask And Do N’t Forget To Check The Appearance

Don't forget to check the appearance when choosing a mask. This is an issue that we can easily ignore when choosing a mask. First, Mask check whether the packaging of the mask is complete and damaged. There should be no holes or stains on the surface of the mask. Medical protective masks should not have an exhalation valve. For close-fitting arched masks, the horizontal diameter is not less than 14cm and the longitudinal diameter is not less than 14cm; the medical protective rectangular mask is not less than 17cm in length and the width is not less than 17cm;Mask the ordinary degreasing gauze mask is not less than 17cm in length and 13cm in width The number should not be less than 12 floors. Another thing to remind everyone is that if you choose a medical mask, you must remember to have a nose clip, which is made of bendable plastic material and has a length of not less than 8.5cm.