How Many CFM Do I Need For My Range Hood? | Comprehensive Guide 2022

Do you want to know how many CFM do I need for my range hood? A range hood is an essential tool for the kitchen. It sucks all harmful air from the kitchen smoke and creates a free-pollutant environment.

How Many CFM Do I Need For My Range Hood?

After deep research, our expert team explains that a range hood depends on your cooking situation. We are reviewing some of the range hoods here, that provide enough CFM to ventilate your kitchen. You can choose the right range hood from the list and at least 100 CFM for every 10,000 BTUs of your stovetop.

For example, A 100,000 BTU stove needs at least a 1000 CFM range hood. For electric stoves, multiply the stove width by 10. So, for a 42” electric stove you want a range hood with at least 420 CFM.

The best range hood is different for everyone. It depends not only on your cooktop but also on your cooking style. Our expert team is always recommended to their members as participants that buy those range hoods that have all the features we recommend.

What Is CFM?

CFM stands for cubic feet per minute. It says how powerful the fan moves air, simply put, it is the amount of air the ventilation the hood fan can remove through its filter every minute. The fan should be strong enough to cover the cooking area and absorb all possible contaminants without sound. The standard CFM for different hoods is 150 to 600 CFM, but for a typical home cook hood range, it can go up to 1000+.

What Is The Best CFM For A Range Hood?

Basically, if you want an exhaust fan for the kitchen that is suction power enough to remove smoke, indoor pollutants, and indoor air, one of the biggest threats of indoor cooking is removing nitrogen dioxide, which is a breathing irritant.

CFM Recommendations

According to the HVI (Home Ventilating Institute), there are the minimum bare bone and ideals CFM for a kitchen range hood

For a 30″ Range Hood

For the standard 30” wide range hood, for a 30” range hood, you want a minimum of 100 CFM. The recommended ideal CFM for a 30” range hood is 250.

For a 36″ Range Hood

For a 36-inch reaching hood, you’ll need at least 120 CFM. The recommended ideal CFM for a 36-inches range hood is 300.

For a 48″ Range Hood

For a 48-inch reaching hood, you’ll need at least 160 CFM Will to be needed. The recommended ideal CFM for a 48-inches range hood is 400.

How to Calculate the Right CFM

There are different ways to calculate the CFM, but here some of them are the following. Just keep the size of your range hood in mind, the size of the room, and the kitchen layout.

Room Size for Range Hoods

Then the question is arise of how many CFM do I need for my range hood. Consider the size of the room and the layout of the kitchen. The trend toward an open kitchen and higher ceilings that extend and don’t capture the particulates that can travel.

To keep your indoor air clean, a practical range hood should be able to adjust the air volume by volume every four minutes (15 times per hour). For example, Your kitchen may be located in a 20” x 20” room with 10” ceilings.

So 20” x 20” x 10” is equal to 4,000 CFM (Cubic feet per minute) as needed for your size of the kitchen. Then divide the CFM by 4, 4000 / 4, equal to 1000 CFM range hood.

How many CFM do I need for my range hood? Some Other Considerations

Range Hood Size

Note the size and position of your range hood. If the range hood is not at least six inches long, you won’t be able to maximize the power of the hood fan. It needs to have the proper amount of overhand and depth for them to work effectively.

If you want to extend the edges of your cooktop, it is better for an island range hood. Be sure your hood is at least a size or two up from your stove or has three-to-six inches overhand. And if you have an outdoor kitchen, aim for your hood to extend 6-to-12 inches past the cooktop.

Mounting Height

If you install more than a 36″ vent range hood above the cooktop. You need a high CFM to properly remove air pollutants and your hood will try to work efficiently. On the other hand, if the range hood is too close to the cooking surface.

It will not capture the cooking air efficiently. It can also get boiling when you cook and shorten the life of your hood. To maximize your ventilation power, your vent hood should be installed between 28″ and 36″ inches from the top of the kick.

Noise Level

If you’re sensitive to sound, you need to know how high your hood reaches. The faster you run your hood fan, the louder it will sound. However, a few things can help reduce it.

If you increase the size of the hood, it will reduce the noise. The more oversized Proline hood is more efficient, and thus the fan is quieter. With the larger capacity, you’ll be able to operate the hood at low speeds and stay calm.

Plus, you can choose an inline or remote blower instead of an internal one. This means that the noisy part of the range hood, the blower, will move away from you and be quiet.


When you frequently cook more, the more often you will have to clean your grease filters. Proline’s stainless steel baffle filter captures grease efficiently, and they are dishwasher-safe.

If you calculated the minimum requirements for your range hood CFM, we recommend installing a large-scale range hood. Keep in mind that it is a good idea to scale it up in most cases. The most powerful range of hoods on the market for your home.

The most popular range hoods are available at 250 CFM, 300 CFM, and 400 CFM. However, at Proline, we sell a wide variety of exhaust fans, like wall mount range hoods, range hood inserts, islands range hoods, under-cabinet range hoods, and outdoor range hoods ranging from 600 CFM to 2000 CFM.


Hopefully, you found your answers to the question: how many CFM do I need for my range hood? Calculating the CFM of the range hood is easy, but here we explain some of the biggest takeaways about the range hood CFM.

More CFM (Cubic feet per minute) is almost better since you can run your range hood at lower speeds if you often don’t use the max power. You don’t have enough power range hoods from a big box store to vent all the smoke from your kitchen space, and they are not made with high-quality materials.

Until look for a range hood that is at least 600 CFM. Once you discover the CFM you want, you’re well on your way to finding the most desirable range hood for you.

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