What Is Breathing Air?
Breathing air is compressed air whose quality must be suitable for use with respiratory protective equipment when the surrounding atmosphere cannot be safely breathed.
Examples of equipment concerned:
- Self-contained breathing apparatus, such as the MAR 95 or PK17
- Helmets, such as the MC91
- Air-fed hoods
These solutions are used in particular when the environment contains pollutants, contaminants, or conditions that make it unsafe to breathe the surrounding air directly.





