What is the only acceptable breathing device for handling chlorine leaks?

The only acceptable breathing device for handling chlorine leaks is a self-contained breathing apparatus (SCBA). This device is crucial in such situations because chlorine gas is highly toxic and can cause severe respiratory distress or even be life-threatening if inhaled.

An SCBA is designed to provide breathable air in environments that are hazardous or where the air quality is unknown. It includes a tank of compressed air that allows the user to operate in a contaminated atmosphere for a specified period. This equipment protects the user from inhaling chlorine gas and other harmful substances, ensuring that emergency responders or workers can effectively manage the leak and evacuate the area safely.

Other types of breathing devices, such as activated carbon or potassium tetroxide canisters, do not offer the same level of protection against chlorine because they are not specifically designed for the high toxicity of chlorine gas. Oxygen supply apparatuses may not be effective in environments with dangerous concentrations of gases like chlorine, as they do not filter out harmful agents. Therefore, the use of SCBA is mandated in situations involving chlorine leaks to ensure maximum safety for individuals responding to the incident.