What is the first action to take if a worker suspects the presence of dangerous gases in a confined space?

Using a gas detector is the first action to take if a worker suspects the presence of dangerous gases in a confined space because it provides immediate and accurate information about the air quality. Gas detectors are specifically designed to identify the presence of harmful gases, measure their concentrations, and alert workers to potential dangers. This initial step is critical for ensuring safety, as it enables workers to assess the risks before entering the area.

Ventilation is an important step in mitigating gas hazards, but it should only be performed after confirming the presence of dangerous gases and assessing the specific situation. Entering the space without proper detection can lead to severe health risks, as workers may expose themselves to harmful gases without knowing their concentration levels. Calling for assistance is also a wise precaution, typically following the use of detection equipment to ensure safety protocols are adhered to before entering. Therefore, employing a gas detector is essential for understanding the risk and ensuring the safety of all personnel involved.