There is a range of devices on the market that are suitable for use in confined space monitoring but they are, ultimately, used for keeping an eye on the levels of the various gases present in a small area. This is highly important, as many gases (in certain concentrations) can prove fatal to workers who receive over exposure.

Generally, a Confined Space Monitor confined space monitor will measure the levels of carbon monoxide (CO), hydrogen sulfide (H2S), oxygen (O2) and other gases in a given area, sounding an alarm whenever it detects levels that exceed what is considered ‘safe’. A confined space that requires monitoring is defined by the following:

  • a space that contains (or has the potential to contain) a hazardous atmosphere
  • a space that contains a material that could possibly overwhelm a human present in the area
  • a space whose configuration could cause a human to become trapped or asphyxiated
  • a space that contains any additional safety or health hazards, as determined by your industry

As any of the above scenarios could result in serious injury or even death, it is important that employees carry the correct monitor with them at all times.

It is also important to ensure that your monitor is switched on and measuring at all times, as the gases present in these spaces could turn fatal in a second if given the right conditions. Each gas also has its own weight and method of movement about a confined space, meaning that the levels in a given area could be always changing – for example, hydrogen sulfide is quite heavy and will be present closer to the floor, posing a hazard if you are required to work low to the ground. A confined space monitor, then, is a highly important device for keeping your employees safe.