AS/NZS 1715:2009 is the Australian/New Zealand Standard for the selection, use, and maintenance of respiratory protective equipment (RPE). Appendix A covers the minimum air quality requirements for compressed breathing air used in respiratory protective equipment (RPE). It outlines the limits for various contaminants such as odour, oxygen content, carbon dioxide, carbon monoxide, and oil vapour.

The necessary capacity of any air service for respiratory protection shall be calculated on a minimum requirement 170 l/min for each person measured at the respirator.

The key points covered in AS/NZS 1715:2009 Appendix A include:

• Odour: Air used to supply respirators shall have no objectionable or nauseous odour
• Oxygen Content: The standard sets the minimum and maximum permissible levels of oxygen content in the breathing air to ensure the safety and health of the wearer.
• Carbon Dioxide and Carbon Monoxide: AS/NZS 1715:2009 provides limits for carbon dioxide and carbon monoxide concentrations to prevent harmful effects on the respiratory system.
• Oil Vapour: The standard specifies the maximum allowable level of oil vapor in the breathing air to prevent respiratory irritation and adverse health effects.
• Odour: Air used to supply respirators shall have no objectionable or nauseous odour