Reader-supported: we earn a commission on some links, at no extra cost to you. It never changes our picks. How this works
Range HoodsGuide

Range Hood Buying Guide

Learn how to choose the right range hood for your kitchen. Compare types, sizes, CFM, ducted vs ductless, noise levels, and key features to make an informed decision.

Our top pick
Cosmo 5MU30 30 in. Under Cabinet Range Hood
Cosmo 5MU30 30 in. Under Cabinet Range Hood
★★★★★ 4.5
Check price on Amazon
Read the full guide →

A range hood is more than a kitchen appliance. It removes smoke, grease, and odors while protecting your cabinets and improving air quality. But with so many styles and specifications, choosing the right one can feel overwhelming. Our editorial team compared specifications, buyer feedback, and key decision factors to create this practical guide. Whether you cook daily or occasionally, this guide will help you find a hood that fits your kitchen and your cooking habits.

Types of Range Hoods

Range hoods come in several mounting styles, each suited to different kitchen layouts. The most common types include under cabinet, wall-mounted, island, and downdraft.

Under Cabinet Hoods

These hoods attach to the underside of a cabinet above your cooktop. They are compact, affordable, and ideal for standard 30-inch or 36-inch ranges. Most are ductless or convertible, making them a flexible choice for apartments or kitchens without existing ductwork.

Wall-Mounted Hoods

Wall-mounted hoods are visible and often become a design statement. They attach to the wall behind the range and come in chimney or canopy styles. They typically offer higher CFM ratings and are available in stainless steel, black, or custom panel options. They require a duct to the outside for best performance.

Island Hoods

If your cooktop is on a kitchen island, an island hood hangs from the ceiling. These hoods are usually wider and more powerful, with sleek designs that complement open layouts. They require ceiling support and ductwork, so plan for installation during construction or renovation.

Downdraft Hoods

Downdraft hoods rise from the countertop behind the cooktop and pull air downward. They are perfect for islands where a ceiling hood is not possible or desired. However, they are generally less effective at capturing rising smoke and grease, and they can be noisy.

Consider your kitchen layout, cooking style, and budget when choosing a type. Under cabinet and wall-mounted are the most popular, while island and downdraft serve specific needs.

Sizing and Clearance

Proper sizing ensures your hood captures smoke and grease effectively. The width of the hood should match or exceed the width of your cooktop. For example, a 30-inch cooktop typically pairs with a 30-inch hood, but a 36-inch hood offers better coverage.

Height clearance is equally important. For gas cooktops, mount the hood 24 to 30 inches above the cooking surface. For electric cooktops, 18 to 24 inches is common. Check the manufacturer's guidelines, as some models have specific requirements for optimal performance.

Measure your space carefully before purchasing. Consider the depth of the hood, especially for under cabinet models, to ensure it does not obstruct your view or headroom. A hood that is too small will not capture all the smoke, while one that is too large may look out of proportion.

CFM and Ventilation Power

CFM, or cubic feet per minute, measures the airflow of a range hood. Higher CFM means more powerful ventilation, but it also increases noise and energy use. The right CFM depends on your cooktop type and cooking frequency.

For gas cooktops, a common rule is 100 CFM per 10,000 BTUs of total burner output. For example, a 40,000 BTU cooktop would need at least 400 CFM. For electric cooktops, use 100 CFM per linear foot of cooktop width. A 30-inch electric cooktop would need about 300 CFM.

If you do heavy cooking, such as frying or searing, add extra CFM. Also consider the length of the duct run. Longer ducts and more bends reduce airflow, so you may need a higher CFM rating to compensate. Most residential hoods range from 200 to 600 CFM, with commercial-style models exceeding 900 CFM.

Ducted vs Ductless

Ducted range hoods vent air to the outside through a duct system. They are more effective at removing smoke, heat, and moisture, and they do not require filter replacement as often. However, they require installation with ductwork, which can be complex and costly.

Ductless hoods, also called recirculating hoods, pass air through charcoal filters to remove odors and then release it back into the kitchen. They are easier to install and are a good option for apartments or homes without exterior access. But they are less effective at removing heat and humidity, and you must replace charcoal filters regularly.

Some hoods are convertible, meaning you can use them ducted or ductless. If you are unsure, choose a convertible model and decide later. For best performance, ducted is the preferred choice, but ductless can be a practical compromise.

Noise Levels

Range hood noise is measured in sones. A sone is a unit of loudness; lower sones are quieter. Most hoods operate between 1.5 and 10 sones. For reference, a quiet library is about 1 sone, while normal conversation is about 4 sones.

Look for hoods with multiple fan speeds. A low speed of 1 to 2 sones is ideal for simmering, while a high speed of 6 to 8 sones is acceptable for heavy cooking. Some models have a boost mode that is louder but temporary.

If you have an open-concept kitchen, noise matters more. Consider hoods with insulated blowers or those that place the motor outside. Also, check the sone rating on the highest speed, as that is often the most used during cooking.

Features to Consider

Modern range hoods offer features that enhance convenience and safety. Here are some to look for:

  • Lighting: Bright LED lights illuminate your cooktop. Some have adjustable brightness or color temperature.
  • Controls: Touch controls, remote controls, or smart connectivity allow easy operation. Some have auto-off timers.
  • Filters: Dishwasher-safe aluminum mesh filters are easy to clean. Charcoal filters are needed for ductless operation.
  • Ductless conversion kits: If you choose a convertible hood, ensure the kit is included or available.
  • Heat sensors: Some hoods detect excessive heat and automatically adjust fan speed.
  • Blower types: Internal blowers are common, but external blowers are quieter and more powerful.

Prioritize features that match your cooking style. For example, if you cook often, look for a hood with a high CFM and easy-to-clean filters. If you value aesthetics, consider a sleek design with integrated lighting.

Frequently Asked Questions

How many CFM do I need for my range hood?

As a general rule, aim for 100 CFM per 10,000 BTUs of gas output, or 100 CFM per linear foot of electric cooktop. For a standard 30-inch electric cooktop, 300 to 400 CFM is usually sufficient. For heavy cooking, consider 600 CFM or more.

Can I install a ductless range hood if I have no exterior vent?

Yes, ductless hoods use charcoal filters to recirculate air. They are easier to install and work well in apartments or kitchens without ductwork. However, they are less effective at removing heat and moisture, so consider a convertible hood if you may add ducting later.

What is the best height to mount a range hood?

For gas cooktops, mount the hood 24 to 30 inches above the cooking surface. For electric cooktops, 18 to 24 inches is typical. Always follow the manufacturer's recommendations for your specific model to ensure optimal performance.

Choosing the right range hood involves balancing type, size, power, and features. Use this guide to narrow down your options, and always check the current price on Amazon to compare models. A well-chosen hood will keep your kitchen fresh and comfortable for years.

Common questions

How many CFM do I need for my range hood?

A general rule is 100 CFM per 10,000 BTUs of gas output, or 100 CFM per linear foot of electric cooktop. For a standard 30-inch electric cooktop, 300 to 400 CFM is usually sufficient. For heavy cooking, aim for 600 CFM or more.

Can I install a ductless range hood if I have no exterior vent?

Yes, ductless hoods use charcoal filters to recirculate air back into the kitchen. They are easier to install but less effective at removing heat and moisture. Consider a convertible hood if you may add ducting later.

What is the best height to mount a range hood?

For gas cooktops, mount the hood 24 to 30 inches above the cooking surface. For electric cooktops, 18 to 24 inches is typical. Always check the manufacturer's recommendations for your specific model.

More in this topic

More in Range Hoods

See the full guide →