What brand of kn95 mask is good?

Well-known 3M masks, Honeywell masks, Shimeijia masks, green shield masks, sedate masks, Swiss treasure masks, sergeant Bailey masks.

1, 3M mask: 3M company is the inventor of particulate matter protective mask. In the United States from 65438 to the early 1970s, 3M Company pioneered a dust mask made of a new particulate filter material in the world, which covered the nose area of the crowd and was widely used to protect all kinds of workers exposed to high-concentration dust at work. In the following 40 years, it continued to study particle protection technology, and designed and produced a wide variety of protective masks with different functions.

2. Honeywell masks: Honeywell is one of the largest manufacturers of safety equipment in the world, and the masks it produces are also very famous. However, there are few models of masks produced by Honeywell, and the most famous one is Honeywell H90 1 mask.

3. Simeijia mask: Simeijia mask is of good quality, independently packaged and hygienic. Except that the activated carbon layer has a little taste, there is no peculiar smell, and the packaging is very good. The filtering effect is good.

4. Green shield mask: Green shield mask is a new generation of antibacterial and dustproof mask developed by Shanghai Xingnuo Kanglun Technology. At present, it has the patent authorization of domestic PM2.5 mask, and its patented PM2.5 technology can prevent particles with particle size less than or equal to 2.5 microns. Green shield masks are currently available in adult and children's models, which can provide healthy and all-round outdoor protection for family members! Children under three years old and children with low vital capacity or sleeping are not allowed to wear masks.

5. Stable masks: Stable masks and replaceable filter masks are the representatives of masks that meet the new national standards.

6, Swiss treasure mask: Swiss treasure negative ion mask is designed with cotton water needle-punched antibacterial fiber layer, which has good breathability. It can be seen that this mask has negative ion function on commodity packaging.

7. China human masks: China human masks are superior to European and American standard protective masks. China human mask, anti-fog mask, pm2.5 mask, formaldehyde mask, dust mask, medical mask, N95 mask.