What level of oxygen is required for supplied air systems?

The correct range of oxygen required for supplied air systems is essential for ensuring the safety and health of workers, particularly in environments where air quality may be compromised, like asbestos remediation sites. A range of 19.5% to 23.5% is considered safe and effective for breathable air.

Levels below 19.5% are classified as oxygen-deficient, which can pose serious risks such as suffocation or other health hazards. Conversely, levels above 23.5% indicate an oxygen-enriched atmosphere, which can increase the risk of fire and other combustion hazards. Therefore, the specified range of 19.5% to 23.5% ensures that workers are provided with air that is both safe for breathing and minimizes the risk of harmful conditions. This makes it the ideal choice for supplied air systems in environments where additional precautions are necessary, such as those dealing with asbestos.