The most common specification of the poison filter box is the organic gas filter box, which is mostly used in painting, organic experiment, petrochemical and other operating environments. Acid gas filter cartridges and inorganic gas filter cartridges are more widely used in chemical plants. The poison filter box can be divided into 5 major specifications according to different working environments. The poison filter box is generally cylindrical, T-shaped column, etc.

With the continuous complexity of the modern labor environment, the safety of human labor operations has been continuously improved, and the performance of the filter parts of gas masks has also been continuously improved. Key indicators such as the effective protection time, shelf life, and scope of protection of the poison filter box directly determine whether the poison filter box meets the needs of human safety in production, so the specifications of the poison filter box mainly consist of model, material, protection object, color code, etc.

2. If the boiling point of the adsorbed substance is lower than 65°C, it is recommended to replace the filter cartridge every day.

3. If it is considered that the adsorbed substance is relatively easy to volatilize, and the cartridge is not used for a few days in the middle of use, such as during the weekend, it is recommended to replace the cartridge.

4. Even if it is considered that the adsorbed organic substances are not easy to volatilize, it is recommended to replace the canister if the canister is stopped for about two weeks in the middle of use.