When is it appropriate to use an EEBD?

An EEBD, or Emergency Escape Breathing Device, is designed specifically for situations where individuals may be exposed to dangerous environments, particularly where the atmosphere has become untenable due to smoke, gas, or lack of oxygen. Using an EEBD is appropriate when there is a need for supplemental oxygen during an escape, enabling individuals to safely exit hazardous conditions.

In the context of other options, using an EEBD during routine maintenance might not be necessary unless there is a known risk of exposure to harmful atmospheres. While conducting safety drills, the EEBD can be demonstrated, but its primary purpose is not for drills; it's for genuine escape scenarios. Lastly, entering confined spaces requires specific safety measures and equipment, but an EEBD is not typically used as a standard precaution for entry unless there is a known risk of inhaling harmful substances or experiencing a lack of oxygen. Therefore, the most fitting scenario for using an EEBD is during an actual escape when oxygen needs arise.