The Different Functions of All Sort of Masks

There are the response function to Coronavirus disease (Covid-19) with all sort of masks. Hope these information could be referenced when you resist the Covid-19.

1.Cotton mask:

https://images.app.goo.gl/Kg42FDFkXKLNSTTv7

Its function is to avoid inhaling dust or spraying droplets, and it has 80% barrier effect on particles above 6μm. For temporary warmth or when surgical masks are not available. The advantage is that it can be repeatedly cleaned and used, which is more environmentally friendly, but if it is cleaned, it is easy to breed bacteria.

2.Activated carbon mask:

https://images.app.goo.gl/wayGjGF6kUJk17id6

The activated carbon layer can be added to absorb organic gas, and the fiber pores in the filter layer are smaller than cotton masks, so it can absorb the organic solvents emitted by the attached motorcycle.

3.Surgical masks:

https://images.app.goo.gl/AmupiUTXPQNB1kEW8

The structure is usually divided into three layers: the outer layer is splash-proof, the middle layer has a filtering effect, the inner layer can absorb moisture, and it has a 90% barrier effect on particles larger than 6 μm. The function is to avoid inhaling droplets of particles coughed by the patient.

4.Medical gauze mask:

https://images.app.goo.gl/VscTDkb29nWywwR76

It is made of 12-15 layers of medical gauze treated through strict disinfection procedures, which can resist bacteria and viruses. However, this type of mask is not ideally close to a person's face in terms of structure, and if worn for a long time, it can make people feel breathless and uncomfortable.

5.N95 mask:

https://images.app.goo.gl/fLtcz83zNvii4FR87

N means that this mask is suitable for use in non-oily occasions, and 95 means that this mask can filter out more than 95% of fine dust with a volume of ≥ 0.3 μm during use. The bulge in the middle is cup-shaped, which fits well with the mouth and nose of a person, and has a certain filtering space.