What is the required humidity limit for SCBA air supply?

The required humidity limit for SCBA air supply is no more than 50% relative humidity. Maintaining this level is crucial for ensuring the integrity of the SCBA system and the comfort of the user. Excess humidity can lead to water condensation inside the SCBA unit, which may result in corrosion of internal components, malfunction of the equipment, or even contamination of the air supply. Thus, the 50% relative humidity limit is set to promote optimal functioning and safety for personnel relying on SCBA during hazardous operations. This standard helps to prevent issues associated with moisture, ensuring that the air being provided remains clean and breathable.