Considerations for using the powered air respirator
  2022/08/05| View:593

In recent years, poisoning and asphyxiation accidents have occurred due to access to limited space operations, which have caused widespread concern in society. Therefore, access to limited space operations, in addition to compliance with the work permit system, also according to the workplace, working time to choose the appropriate breathing apparatus to protect the safety and health of workers.

 

powered air respirator


Powered Air Respirator is an option to provide respiratory protection when working in a limited space. It has the advantages of being lightweight, easy to use and maintain, and less restriction on users' work activities.

 

The gas detector is needed in the confined space.

 

Before staff members use the powered air respirator, they are tested in the following order: (1) oxygen confirmation to detect the current oxygen concentration level; (2) flammable gas confirmation to detect changes in flammable gas; (3) to confirm the toxic gas, detect whether the concentration of each toxic gas is lower than the allowable exposure limit (Pel) stipulated by OSHA. H2S and Co are the usual toxic gases in a confined space, and other toxic compounds are not included.

 

It is very important to detect the concentration of various gases or vapors by sampling at the top, middle, and bottom of the confined space. Some gases are lighter than air (like methane and flammable gases) and can be picked up in the upper part of a confined space; some are heavier than air (like H2S) and can be found at the bottom of a confined space There are other gases whose specific gravity is almost as heavy as air (like CO) and they can be detected in the middle of a confined space.

 

The gas detector points out that samples are taken at different heights in the enclosed space, and we will find different results when the detector is continuously tested according to the actual situation.

 

In short, we have to pay attention to the detection of closed space, in the closed space must use a gas detector for relevant detection, only after the relevant detection to ensure the working environment.

 

Those are some of the things you should know about powered air respirators. For more on powered air respirators, stay tuned.