What are the functions of medical surgical masks ?

Medical surgical mask is a kind of protective equipment often used in medical treatment. Surgical mask is also effective in other industries, such as working in the environment of some harmful gas or steam, which also requires the use of surgical mask

Surgical mask has the effect of dustproof and anti-virus, and can filter the substances that have toxic effect on human body, which is very important to health. The woven dust mask is only a protective device for respiratory organs to protect the respiratory organs from harmful substances. It is generally composed of a mask and a filter box. The filter box is filled with adsorbent or sorbent, so the adsorption effect is very good. Some filter boxes are also equipped with a filter layer, which can prevent aerosol at the same time. The respirator used in the military is mainly made of activated carbon cloth. It may be made of water resistant and oil resistant fabric as the outer layer, glass fiber filter material as the inner layer, and soaked activated carbon polyurethane foam as the bottom layer, providing temporary protection when the gas is suddenly attacked. There are many kinds of gas masks, but from the perspective of structure and operation principle, they are mainly divided into two categories: air filter masks and air supply masks.

(2) Gas supply mask refers to the clean gas source isolated from harmful substances, which is sent to human face for breathing through power effect such as air compressor, compressed gas cylinder device, etc.