How long is the gas mask valid?

Gas masks are generally valid for 5 years. The validity period of a specific gas mask depends on storage and use, and the damage to the gas mask is different in different use environments, so the storage validity period of a specific gas mask should depend on the actual use. If the gas mask is damaged or the headband is broken during use, the accessories of the gas mask need to be replaced.

product classification

According to the protection principle, it can be divided into filter gas mask and isolation gas mask.

Filtering mode

It consists of a mask and a canister (or filter element). The mask includes a mask body, an eye window, a microphone, a breathing valve and a headband (or helmet). The carbon canister is used for purifying toxic gases, and comprises a carbon canister and an adsorbent. These two materials can also be mixed to make filter plates and assembled into filter elements. A lighter canister or filter element (about 200 grams) can be directly connected to the mask, while a heavier canister is connected to the mask through an airway.

Isolated type

The mask itself provides oxygen, which is divided into three types: gas storage type, oxygen storage type and biochemical oxygen type. Isolated masks are mainly used in high-concentration polluted air (when the volume concentration is greater than 1%), or in special occasions such as high altitude, underwater or oxygen-deficient closed cabins.

In addition to the above two kinds of gas masks, many countries are also equipped with various types of gas masks. It is formed by replacing the adsorbent in the canister or improving the local structure on the basis of the filter gas mask. Modern gas masks can effectively defend against poisons, biological warfare agents and radioactive dust that may appear on the battlefield. Part of its weight has been reduced to about 0.6 kg, which can be worn for more than 8 hours. After wearing a gas mask, it is convenient to use optical, communication equipment and weapons and equipment.

The main body of the comprehensive cover is made of high-quality silica gel, which is anti-aging, anti-allergic, durable and easy to clean.