Medical masks are blue and black. From the experience, the black color is dark, so it is difficult to find the pollutants on the mask when wearing it, while the blue medical mask is light in color, so it is easy to find whether there are pollutants, which is widely used in clinic. ?
2. Protective effect
In terms of protective effect, there is a black medical mask on the market, which has not only three layers of non-woven filter paper, but also a layer of activated carbon paper in the middle, which can absorb dust in the air, and the protective effect is better than that of blue medical mask, but the protective effect of cotton or sponge cloth black medical mask is worse than that of blue medical mask.
Color of medical mask
There are four common colors of medical masks on the market: blue, pink, white and black, but these colors don't mean anything, just different moods. For example, blue medical masks are lighter in color, which can make people relax and relieve nervous mood. Clinically, nurses and doctors wear more, while pink masks are warmer and have a certain childlike feeling, which are used in pediatrics and pediatrics.
There are three-layer and two-layer medical masks when buying masks. The second layer mask is mainly made of non-woven fabric, and the third layer mask is made of professional medical and health fiber non-woven fabric, which is divided into two layers and a filter layer. As far as the protection level is concerned, the three-layer medical mask is better, but in the absence of a mask, the use of the second layer mask also has a certain protective effect, and it also blocks the dust and droplets from the outside.