The volume of air a compressor can deliver at a specified pressure is a critical performance metric. This measurement, typically expressed in cubic feet per minute, indicates the compressor’s airflow capacity. A higher value signifies the ability to power tools requiring greater air volume or operate multiple tools concurrently. For instance, a compressor rated at 5 CFM at 90 PSI can reliably operate tools demanding up to 5 cubic feet of air per minute at a pressure of 90 pounds per square inch.
Understanding this performance characteristic is crucial when selecting an air compressor for specific applications. An inadequate supply can lead to inefficient tool operation, pressure drops, and interruptions in workflow. Conversely, an over-specified unit may result in unnecessary expense and energy consumption. The development of standardized testing procedures has provided users with a reliable benchmark for comparing different compressor models and matching them to appropriate tasks.