How to deal with expired medical masks?

Medical surgical mask is a kind of protective articles often used in medical treatment. Surgical masks can also be used in other industries, such as those working in hazardous gas or steam environment.

Surgical mask has dust-proof and anti-toxic effects. It can filter substances toxic to human body, which is very important to health. Woven yarn dust mask is only a respiratory protective article to protect personnel's respiratory organs from harmful substances. It is generally composed of mask and poison filter box. The poison filter box is equipped with adsorbent or adsorbent, which has good adsorption effect; Some filter boxes are also equipped with a filter layer, which can prevent aerosol at the same time. The military respirator is mainly made of activated carbon cloth, or waterproof and oil repellant cloth as the outer layer, glass fiber filter material as the inner layer, activated carbon impregnated with polyurethane foam as the bottom layer, and can be attacked by poisonous gas. Provide temporary protection. There are many kinds of gas masks, but from the perspective of structure and working principle, they are mainly divided into two categories: air filter mask and air supply mask.
(1) The working principle of air filter mask, or filter mask for short, is to filter the air containing harmful substances through the filter material of the mask before being inhaled. The structure of the filter mask is divided into two parts: one is the main body of the mask, and the other is the filter material part, including dust-proof filter cotton and anti-virus chemical filter box.
(2) Air supply mask refers to the clean air source isolated from harmful substances, which is sent to people's face through pipes and masks through the power action of air compressor and compressed gas cylinder device, so as to make people breathe.

The role of surgical masks in our daily life can not be ignored. It can prevent virus infection. In cold winter, it can also enhance the protection of cavity and respiratory system. Therefore, it is also one of the products inseparable from health products.

The quality requirements of medical masks are relatively high. The utility model is composed of a mask face and a tension belt. The face of the mask can be divided into three layers: inner layer, middle layer and outer layer. The inner layer is ordinary sanitary gauze or non-woven fabric, the middle layer is ultra-thin polypropylene fiber melt blown material layer, and the outer layer is non-woven fabric or ultra-thin polypropylene melt blown material layer. The outer layer adopts anti droplet design, the middle layer is filtered, the inner layer is hygroscopic, and the mask is made of non-woven fabric. This mask is mainly used to protect doctors from droplets and splashes. The particle filtration rate is only more than 30%, and the filtration rate for bacteria can reach more than 95%. This three-layer configuration makes the fine virus filtering effect very good, and the material is non-toxic. It is a very good medical protective mask.

In fact, medical masks can be carried and used by doctors at any time. In fact, ordinary residents can also save some. It can be worn when the air is bad to protect the respiratory system and health. How to deal with expired medical masks. According to the requirements, medical disposable masks cannot be used in clinic. However, if the outer package of the mask is not damaged or contaminated, personal protection can still be used. However, for safety reasons, it is recommended to treat after disinfection or directly replace with new products. Like general surgery, the medical protective mask used by surgeons is a disposable mask, which can be thrown away when used up. In order to ensure the safety of the next operation, a new medical protective mask will be used.