Has the gas mask been made obsolete by modern-day self-contained breathing apparatus?

The assertion that the gas mask has been made obsolete by modern-day self-contained breathing apparatus (SCBA) is incorrect. The gas mask continues to play a critical role in various situations, particularly where a reliable means of filtration for harmful gases, vapors, and particulates is required. Gas masks are often lighter, less cumbersome, and can be used in scenarios where a full SCBA may not be necessary or practical, such as in first responder situations or in environments with less hazardous compounds.

Self-contained breathing apparatus is essential in situations where the air quality is immediately hazardous and provides a supply of breathable air by utilizing a tank. However, this equipment can be heavy and may not be needed in all environments. Additionally, certain industrial applications and firefighter responses often use gas masks as a component of their personal protective equipment because of their multifunctional versatility.

In settings where lower levels of contamination exist or where quick mobility is necessary, gas masks remain indispensable. Therefore, while SCBA may be more advanced for specific hazardous conditions, gas masks have not been entirely replaced and remain relevant for many applications in workplace and environmental safety.