China Non-Medical Disposable Face Mask Company introduces the difference between disposable blue masks and gray masks:

The difference between blue masks and gray masks is mainly reflected in color. Generally, the external color of blue masks is blue, while the external color of gray masks is gray. According to my country's regulations on disposable medical masks, disposable medical masks are mainly blue, and there are also disposable medical masks in white, gray, black, pink and other colors, so people have a relatively large space to choose colors, they can choose A mask of your own color.

At the same time, masks of different colors are not much different in appearance and use except for the difference in color. They all have the functions of preventing germs, blocking dust, filtering bacteria, etc., and their effects are very significant. .

Generally, there is not much difference in protective effect between blue masks and gray masks, but there is a certain difference in protective effect between blue masks and black masks, because black medical masks have three layers of non-woven filter paper, and a layer of activated carbon is added in the middle. Paper can better absorb dust in the air, and the protective effect is naturally better than that of blue medical masks, so pay attention when buying masks of different colors.

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