A filter type fire self-rescue respirator

Abstract

The invention discloses a filtering type fire-fighting self-rescue respirator, wherein the filtering type fire-fighting self-rescue respirator comprises a hood and a canister, the canister is arranged on the hood, and a transparent large The eye window, the outer surface of the transparent large eye window is pasted with several layers of transparent shields. Compared with the prior art, the present invention can quickly remove the black smoke attached to the large eye window when the line of sight of the large eye window is blocked, so that the survivors can clearly observe the surrounding environment, choose the correct escape route, and avoid being trapped. In the fire scene, improve the escape efficiency.

Description

technical field [0001] The invention relates to the field of fire-fighting respirators, in particular to a filter type fire-fighting self-rescue respirator. Background technique [0002] The fire self-rescue breathing apparatus is mainly used for escape and self-rescue breathing tools for people in the fire environment to avoid smoke poisoning and suffocation when a fire occurs. General filtering fire self-rescue respirators include a canister and a hood, and use the medicament and smoke filter elements in the canister to remove toxic gases such as carbon monoxide, hydrogen cyanide, thick smoke, and poisonous fog in the air of the fire scene. Filter it out and turn it into harmless air for the survivors to breathe. And through the large eye window that is provided with on the hood, see the surrounding environment clearly and choose the correct escape route. However, when a fire occurs, the incomplete combustion of objects in the fire site will produce black smoke containin...

AI Technical Summary

Problems solved by technology

However, when a fire occurs, the incomplete combustion of objects in the fire site will produce black smoke containing particulate matter, and the combustion products will also contain water vapor, which makes the adhesion of the black smoke stronger, and it is easy to adhere to the fire protection equipment worn by escapees. The large eye window of the self-rescue respirator blocks the sight of the escapees and affects the escapers' normal judgment on the escape route, thus making the escapees trapped in the fire scene, increasing the residence time in the fire scene, and increasing personal safety hazards

In addition, the black smoke particles attached to the large eye window cannot be effectively and completely removed by manual wiping, and the survivor's vision will continue to be blocked

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