Fan Buyer's Guide - What Is CFM?
Inspiration, What to Consider & Fan FAQs: Tips for Understanding CFM & Airflow Efficiency
What Does CFM Mean?
CFM stands for cubic feet per minute (it is also referred to as airflow). Put simply, CFM is how much air a fan moves. The measurement is taken when the ceiling fan is on its highest speed and uses both the volume of air and the rate at which it moves. The number depends on a few things: the fan’s motor, the blade pitch, and the length and/or shape of the fan blades. But the important part is: the greater the CFM, the more air a fan will move.
CFM & Measuring Airflow Efficiency
CFM is key when determining a fan’s airflow efficiency. Airflow efficiency is the CFM divided by the watts/amount of energy used to run the fan at its highest speed. A CFM of 75 is the minimum number to make a fan efficient. So you could have a fan that moves a lot of air (with a high CFM) but does so at a high wattage, so the fan may not be considered efficient. Look for fans that operate at a high CFM and low power usage. Additionally, to increase energy efficiency in your space, consider a ceiling fan with light powered by an integrated LED kit.
How to Determine CFM & Efficiency Metrics
Instead of handling calculations yourself, we make that part easy for you. You’ll find the airflow, power usage and airflow efficiency metrics listed in the product details for each of our ceiling fans. If you have any additional questions about CFM as it relates to a ceiling fan you are interested, please call our fan experts at 877.445.4486.
Choosing a Ceiling Fan & FAQ
- Choosing the Right Ceiling Fan Size
- Choosing Ceiling Fans by Room
- Using Ceiling Fans in Summer & Winter
- Ceiling Fan Installation Options
- Energy Star Qualified Ceiling Fans
- Using a Ceiling Fan On a Sloped Ceiling
- The Difference Between 4 & 5 Blade Fans
- What is Blade Pitch & Why is it Important
- Why Buy a Remote for Your Ceiling Fan
- When to Buy a Ceiling Fan Light Kit
- CFM & Airflow Efficiency
- Choosing An Outdoor Fan