What average ACFM must the air supply system deliver to the diver?

To determine the average ACFM (Actual Cubic Feet per Minute) that the air supply system must deliver to the diver, it's important to understand the typical breathing demands for a diver using the MK-20 / KM-37 Portable Surface Supplied Diving Systems. The average requirement for a diver's air consumption is generally established at around 1.4 ACFM during work conditions.

This value accounts for a diver's metabolic rate, activity levels, and the need for a safe air reserve to prevent suffocation or other complications while underwater. The 1.4 ACFM is designed to ensure that the diver receives adequate air to meet their physiological needs, particularly during physical exertion, and enhances safety by providing a consistent supply.

Therefore, identifying average ACFM needs like 1.4 not only meets the basic requirements for breathing but also allows for adjustments based on the specific situation or environmental factors. Hence, this value serves as a standard that supports diver safety and operational efficiency in underwater environments.