2. The gas filter box (gas filter tank) is connected to the mask through the corrugated rubber gas filter, which is generally a runoff structure. Compared with the direct type gas filter box (gas filter tank), the disadvantage is large volume and relatively heavy weight, and the advantage is that the anti-virus performance has been improved.

According to the number of activated carbon grams of filter tank, it can be divided into three types: filter box, filter tank (small), filter tank (medium).

According to the type of filter tank can be divided into: ordinary filter tank, multi-function filter tank, comprehensive filter tank, special filter tank.

Common gas mask canisters include:

Type A protection against organic gases or vapors;

B type protection against inorganic gases or vapors;

E-type protection against sulfur dioxide and other acidic gases;

K-type ammine and organic derivatives of ammonia;

CO type anti-carbon monoxide gas;

Hg type anti-mercury vapor;

H2S type anti-sulfide gas;

Each type of filter tank corresponds to a different tank color.

The multifunctional filter tank includes: a filter tank for protecting two or more toxic gases including a common filter tank;

Comprehensive filter tank: ordinary filter tank or multi-function filter tank with smoke filter function.

Special filter tank: Used to protect those special gases or vapors not specified by national standards, and specifically specified by the manufacturer.

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According to the national standard to determine the type of gas, and select the corresponding filter tank

Q3

What is the inspection of canister use?

When we get the gas mask canister, the first time to check whether the canister packaging is complete, if there is damage or air leakage, it will affect the anti-virus performance of the canister to a certain extent, it is not recommended to continue to use.

If you check that the package is sealed, you can install the filter tank and the gas mask according to the instructions, and finally test the tightness of the gas mask through positive pressure or negative pressure. If there is no air leakage, you can use it safely.

Q4

How to use the filter tank

First of all, shake the canister in your hand, and hear the rustling can not be used.

Connect the gas mask: unscrew the lid of the canister, connect the canister under the mask, and remove the rubber plug of the air inlet at the bottom of the canister.

Check the air tightness of the full set of masks before use. The method is: connect the mask and the filter tank, wear the gas mask, plug the filter tank inlet hole with your hand or rubber plug, take a deep breath, if there is no air into the mask, the air tightness is very good, can be used, otherwise it should be returned to renew the filter tank.

Check the validity period before use, and replace it in time if it is expired or damaged. If you can smell the faint smell of poison gas while wearing, leave the toxic area immediately. Do not use this mask in places where the oxygen content in the air is less than 19.5%

5. The filter tank should be stored in a dry, clean, air circulation place, strictly prevent moisture, overheating, valid for 5 years, more than 5 years should be re-identified.

6. After each use, the upper nut of the filter tank should be screwed on, and the rubber plug should be stuffed and stored. Beyond the anti-virus time directly scrap treatment.

Q5

What is the timing of canister replacement?

Regarding the replacement time of the filter tank, in fact, it is the same as the determination method of the replacement time of the filter box. When the user can smell the smell of harmful substances or the respiratory resistance increases after correctly wearing the gas mask, he must immediately leave the contaminated area and replace the new filter tank in a safe place.

Although the small filter tank looks very insignificant, but for the entire protection system is irreplaceable, after reading the above introduction, I believe you have a more detailed understanding of the purchase and use of the filter tank precautions, if you need to know more protection knowledge, welcome to pay attention to Gao Ma safety, here is the latest and most complete safety protection information.