What protective equipment must be worn when entering a compartment with a high concentration of CO2?

When entering a compartment with a high concentration of carbon dioxide (CO2), the requirement for using a Self-Contained Breathing Apparatus (SCBA) is paramount. CO2 is a colorless, odorless gas that can be extremely dangerous; in high concentrations, it can lead to asphyxia, unconsciousness, and even death. SCBAs provide a safe, breathable air supply that allows personnel to enter environments where the oxygen level is insufficient or where toxic gases may be present.

This protective equipment is specifically designed to protect the respiratory system, which is the most critical vulnerability in an oxygen-depleted or toxic atmosphere. Using an SCBA enables trained individuals to safely carry out necessary tasks while significantly reducing the risk associated with exposure to harmful gas concentrations.

The other types of protective equipment mentioned, such as helmets, fire-resistant gloves, and safety goggles, are important in various contexts but do not address the primary hazard posed by high CO2 levels. Proper respiratory protection is essential in these situations, making the choice of donning an SCBA not only correct but also crucial for safety.