What should firefighters ensure regarding their SCBA mask before use?

Before using a self-contained breathing apparatus (SCBA) mask, firefighters must ensure that it provides a solid seal on the face. This is critical for maintaining the integrity of the respiratory protection system. A proper seal prevents contaminated air from entering the mask, ensuring that the firefighter receives clean, breathable air while working in hazardous environments.

If the seal is compromised, the effectiveness of the SCBA is greatly diminished, increasing the risk of inhaling toxic smoke, gases, or other hazardous materials. Ensuring a proper fit is essential for compliance with safety standards and for the safety of the firefighter.

While other aspects, such as adjustability for fit and specific visors, may contribute to comfort and functionality, the primary concern is achieving an airtight seal. Style is not a relevant factor in determining the mask's effectiveness in protecting the firefighter.