【How to Select A Face Mask】 1.With activated carbon filter, 5 layers of protection, M nose clip. 2.The size completely covers your nose and mouth. 3.Close to the sides of the face, no gap. 4.Nose line to prevent air from escaping through the top. 5.Choose a material that breathes well and is soft and comfortable, such as polyester. ????The point is, our products meet the above requirements, can give you a safe protection.
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