If a confined space is shown to be oxygen deficient, which of the following should you do?

In the context of safety protocols for confined spaces, the situation where a space is oxygen deficient requires immediate action to mitigate potential hazards. The best response in such a scenario is to address the oxygen deficiency before considering any entry or actions within that space.

Purging the space with fresh air is critical because adequate oxygen levels are necessary for safe entry and work. Simply waiting for conditions to return to normal compromises safety, as oxygen levels may not improve on their own, and entering without corrective measures can lead to serious health risks.

Calling for help should ideally happen concurrently with addressing hazardous conditions, as those trained in emergency response can assist. However, the priority must be to ensure the environment is safe through proper ventilation. Entering with caution does not adequately address the underlying issue of oxygen deficiency and could be fatal.

Overall, ensuring a safe environment through purging with fresh air is essential for the safety of individuals working in or around confined spaces.