Can ordinary gauze masks effectively protect against particulate matter in the air?

Using gauze masks as anti-particle masks is the biggest misunderstanding of using anti-particle masks. Gauze masks are not protective masks.

As early as 2000, the government banned the use of gauze masks as dust prevention in the workplace.

The two most critical technical indicators of protective masks are the filtration efficiency and the ability of the mask to isolate polluted air. The gauze mask not only has a low filtration efficiency, but also has obvious leakage. Use the suitability test method of the respirator mask to detect it, everyone You can realize this right away. Some people think that a little protection is better than nothing, but if that is not effective enough, it should not be used.