CFM

Definition

CFM stands for cubic feet per minute, a measure of the volume of air flow in a given period.

Purpose

The purpose of using cubic feet per minute (CFM) is to quantify the rate of air flow, which is essential for designing and evaluating ventilation, heating, and cooling systems.

Examples of Use

1. HVAC Systems: Determining the air flow rate needed to maintain desired temperature and air quality in a building.
2. Exhaust Fans: Specifying the CFM rating to ensure adequate ventilation in bathrooms or kitchens.
3. Air Compressors: Measuring the air flow rate to match tools and equipment requirements.

Related Terms

• Airflow: The movement of air from one location to another.
• Ventilation: The process of supplying fresh air and removing stale air from a space.
• Pressure: The force exerted by air flow, often measured alongside CFM in HVAC systems.

Notes

• Higher CFM indicates greater air flow capacity, which is critical for efficient system performance.
• Accurate CFM measurements help in selecting the right equipment and ensuring regulatory compliance.