What is the estimated air supply duration of the MSA G1 SCBA?

The MSA G1 SCBA is designed to provide a reliable air supply duration that typically ranges from 30 to 60 minutes, depending on various factors such as user exertion, work rate, and the specific model used. This duration is based on the size of the cylinder, which is commonly either a 4500 or 5500 psi configuration, and the breathing rate of the wearer.

The choice of 30 to 60 minutes reflects a practical balance between the need for a sufficient air supply during hazardous conditions and the manageable weight and size of the SCBA setup. It's important for users to recognize that while the equipment is rated for this duration, individual conditions and activities can significantly affect actual air supply time, necessitating regular monitoring and careful planning.