Masks are not suitable for people

Some people are not fit to use protective masks. First of all, professional protective masks are designed for adults and not intended for children. Except for children with small faces and missing elements, people generally cannot require children to independently understand how to use the product, and there will be dangers caused by improper use; In addition, the evaluation standard of respiratory masks for respiratory resistance is established on the basis of healthy adults. When used for children who are not physically developed, there may be some problems.