# What is a good CFM for fan?

## What is a good CFM for fan?

Good CFM ranges from 4,000 to 5,000. Better ranges from 5,000 to 6,000. Best is over 6,000.

How many CFM do I need to cool a room?

Air quantities (cfm): 400 cfm per ton of cooling is needed for normal comfort applications, 500 cfm per ton of cooling for heat pump and high sensible heat applications, and 350 cfm per ton of cooling for high latent heat applications.

### What is CFM mean in fans?

cubic feet per minute
A fan’s ability to move air is measured in cubic feet per minute (CFM). The bigger the bathroom, the higher the CFM rating you’ll need. A fan should have a CFM rating high enough to replace the air in your bathroom at a rate of eight times per hour.

What fan moves the most air?

The three outdoor ceiling fans that move the most air are as follows:

• TroposAir Liberator 82″ at 15,754 CFM.
• Craftmade Colossus 96″ at 13,644 CFM.
• Minka-Aire Extreme 96″ at 12,176 CFM.

## What CFM do I need for bathroom fan?

For most bathrooms this works out to one CFM per square foot of bathroom area. For example, a 7′ x 10′ bathroom would require a 70 CFM fan. A 50 CFM rating is recommended as a minimum for bathrooms 50 sq. ft.

How often should air be changed in a room?

One way to measure ventilation is to figure out how often the air in a space is completely replaced. This is called Air Changes per Hour (ACH). In a 30-foot by 30-foot classroom that has 25 students in it, the air should be replaced at least every 15 minutes, which equals an ACH of 4.

### What ceiling fan has the highest CFM?

Best Overall Large Ceiling Fan Not only is the Slipstream Energy Star Certified, but it produces a high CFM rating of 8,778. This whopper is available in four different finishes but is shown with the ever-popular brushed nickel wet finish.

How do you calculate CFM?

– Measure the room’s width and length. – Multiply the three measurements from step 1 to determine the cubic footage of the room. – Multiply the cubic volume of the room by the number of times you want the air to turn over or exchange in an hour. – Divide your answer from step 3 by 60 to calculate CFM.

## What is the best CFM for a ceiling fan?

– Always buy an oversize bathroom fan to get more benefit. – If your bathroom is too big, you can buy two or more fans for the best results. – A small bath can work with 50 CFM fans, a bigger one can work with 80 CFM, and the larger one will work with 120 CFM fans. – Make sure to buy a high-quality and the best fan with a warranty.

How do you measure CFM?

Go with an anemometer that measures air flow in cubic feet per minute.

• Turn on the anemometer and set it to measure air flow. If you just recently purchased your anemometer,insert batteries or plug it in to power it up.
• Hold the vane wheel next to the fan or duct you want to measure.
• Press “Hold” to pause the anemometer on a particular reading.
• ### What is CFM in a ceiling fan?

The lowest is a bit over 2000 CFM

• The medium is a bit under 4000 CFM,
• Whereas,the maximum level of Air Flow Capacity is 6000 CFM