How about a second-class 14 mask?

14 the second kind of mask is a medical care mask, which is used to block or protect splashes exhaled by the mouth and nose or particles other than pathogenic microorganisms, such as pollen. High protection level.

Class II 14 mask medical care mask can be worn by the general public daily, and can also be used for disposable health care in general medical environment, with the lowest protection level. The medical protective mask is suitable for patients who are in close contact with respiratory infectious diseases spread by air or droplets in medical activities. It is a self-priming and filtering medical protective article with high protection level.