EHS Management Consultants

  Confined spaces are areas not designed for continuous human occupancy but may require entry for maintenance, repairs, or inspections. Examples include tanks, silos, manholes, and tunnels. These spaces present unique challenges, primarily due to limited ventilation, restricted access, and the potential for hazardous conditions. Oxygen deficiency, toxic gases, or explosive atmospheres can quickly turn a routine task into a life-threatening situation. This makes understanding and controlling the environment inside a confined space essential for safety. One critical aspect of ensuring safety in a confined space is performing a 3-level gas check. This involves testing the air at different heights: top, middle, and bottom of the space before entry. The reason for this multi-level approach is that gases of different densities behave differently. For example, lighter gases like methane tend to accumulate at the top, while heavier gases like carbon dioxide settle at the bottom. Without te