In the context of mining safety, what does the term "self-rescue device" refer to?

The term "self-rescue device" specifically refers to equipment designed to assist individuals in escaping hazardous environments, particularly in situations such as mine emergencies where breathable air may be compromised. Emergency breathing apparatus fits this definition as it is intended to provide a supply of air for workers who may face smoke, gas, or other dangerous atmospheres. It enables miners to breathe independently of the contaminated environment, facilitating safe evacuation from hazardous conditions.

The other options, while important to mine safety, do not fall under the category of self-rescue devices. Protective gloves are designed for personal safety against cuts or abrasions but do not aid escape from hazardous atmospheres. Fire extinguishers are crucial for fighting fires but do not provide breathable air. Light signal devices are used for communication and signaling but do not protect against inhalation of harmful gases or provide a means of oxygen in emergencies. Thus, emergency breathing apparatus is the correct identification of a self-rescue device within the context of mining safety.