What is the measurement for an air pump?

The measurement for an air pump typically refers to its pressure output, which is often expressed in pounds per square inch (PSI), bar, or kPa. Additionally, the volume flow rate can be measured in liters per minute (L/min) or cubic feet per minute (CFM), indicating how much air the pump can deliver over time. Other important dimensions may include the physical size of the pump and its weight, depending on its intended use.