How long will the air supply last?

The duration of an air supply depends on various factors, including the size of the air supply, the rate of consumption, and the environment in which it's being used. For example, in a controlled setting like a spacecraft, air supply can last from several hours to days based on the number of occupants and their activity levels. In emergency situations, such as a sealed environment, air may last only a few hours if not actively managed. Regular monitoring and management can help optimize air conservation.