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Frequently Asked Questions & Info
10 Reasons to Have a Range Hood
What’s that appliance that hangs above the stove, providing extra light while you cook and a fan to prevent steam from blowing in your face? It’s a range hood! Believe it or not, the range hood is one of the most important appliances in your kitchen, protecting you, your family, and your guests from carbon monoxide, grease, dangerous fumes, bad odors, and more. If you’ve just realized your kitchen doesn’t have one, here are ten reasons why you should get a range hood.
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Reason #1: Air Quality
The primary job of the range hood is to filter out and remove hazardous air pollutants that result from cooking. Smoke, grease, and steam from cooking can linger in the kitchen, coating walls and being inhaled by the cook. The range hood’s blower (fan and motor) sucks up these pollutants, either venting them outside (ducted installation) or filtering the air (ductless/recirculating installation).
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Reason #2: Carbon Monoxide
There’s a reason most carbon monoxide detectors are placed in or near the kitchen—cooking and heating appliances are the leading source of carbon monoxide poisoning. Without proper ventilation, carbon monoxide can cause flu-like symptoms with short-term exposure and can lead to difficulty breathing or even death with long-term exposure. While carbon monoxide detectors warn of a problem, a range hood helps prevent it in the first place!
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Reason #3: Excess Heat
There’s a reason for the old saying, “If you can’t stand the heat, get out of the kitchen.” Cooking produces a lot of heat, smoke, and steam. A range hood helps provide relief by cooling the cooking area and protecting your kitchen.
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Reason #4: Health Protection
Range hoods act as filters, removing irritating, hazardous, and even deadly pollutants from the air. Without one, everyone in the kitchen—and sometimes the surrounding rooms—would be exposed to eye, nose, and throat irritation, lung damage, and potential carbon monoxide poisoning. The safety benefits of a range hood are hard to beat.
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Reason #5: Cooking in Comfort
Cooking can be uncomfortable due to steam, smells, and stuffiness. Range hoods significantly reduce these issues, making cooking a much more enjoyable task. When you’re comfortable, you’ll find that cooking becomes less of a chore.
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Reason #6: Freedom to Experiment
There are endless possibilities in the kitchen, but how often do recipes lose their appeal when you realize how messy or smelly the cooking process will be? A range hood lets you experiment with bold recipes—whether it’s curries, kimchi, or saffron—without worrying about lingering odors or air pollutants. A powerful, properly installed, and ducted range hood eliminates these issues, leaving your creativity as the only limit.
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Reason #7: Additional Lighting
An overhead range hood provides optimal lighting for cooking, ensuring you can see exactly what you’re doing. The lighting features vary by model, so you can choose one that best suits your needs. High-end models offer creative lighting effects, enhancing both aesthetics and functionality. For those looking to impress, luxury range hoods often come with built-in LCD displays, touch-sensitive controls, and other cutting-edge features.
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Reason #8: Cleanliness
Behind the stove and above the cabinets, grease and moisture from cooking can create a sticky film of dust. Without a range hood, this can be harder to clean. By removing grease and moisture, range hoods reduce the time spent cleaning and even help prevent the growth of bacteria and mold, which is especially important for allergy sufferers or anyone with respiratory issues. Some models even feature timers that provide additional ventilation after cooking, further preventing greasy residue from settling on surfaces.
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Reason #9: Style
Range hoods aren’t just functional; they also contribute to the overall design of your kitchen. Available in a wide variety of styles and custom designs, range hoods can either blend seamlessly into the kitchen or stand out as a focal point. Gone are the days of bulky, noisy metal boxes. Today’s range hoods offer quiet operation and a sleek, stylish appearance that can even resemble works of art.
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Reason #10: Home Resale Value
In addition to improving health and safety, enhancing cooking comfort, and reducing odors and grime, range hoods can also increase the value of your home. According to many real estate agents, the kitchen plays a critical role in selling a home. An updated kitchen can add up to 80% of the cost to the home’s resale value. A quality range hood improves both the aesthetics and functionality of the kitchen, boosting the overall appeal of the house. Moreover, by removing airborne pollutants, it helps preserve your cabinets and prevents cooking odors from settling into furniture, contributing to a fresher, more inviting environment for potential buyers.
For safety, comfort, and style, a range hood is essential in any kitchen. But not all range hoods are created equal. While basic models may cover essential functions, choosing one with optimal performance will give you the most benefits, as outlined above. Range hoods vary in price, from around $200 for basic models to $1,500–$5,000 for high-end luxury units. Custom designs can even cost tens of thousands of dollars—but most kitchens don’t require such extravagance. Like other major appliances, range hoods need professional installation. The cost of installation should be factored into your budget, but any contractor can handle the job.
When purchasing a range hood, be sure to check the manufacturer’s warranty and ensure your contractor follows installation requirements for maximum performance and years of trouble-free operation.
What to Look For When Buying a Range Hood
Baffle Filter
The filter is one of the most important factors to consider when buying a range hood. It should be easily removable for regular cleaning and maintenance. A clogged filter (such as an aluminum filter) can prevent the entire system from functioning properly. Ideally, choose either an aluminum cassette filter or a baffle filter. Aluminum filters are inexpensive but not very durable, while baffle filters are pricier and heavier but much more efficient.
High CFM (Cubic Feet Per Minute)
The extraction capacity of the range hood, measured in CFM, indicates how much air the machine can pull out. A higher CFM means a greater volume of air will be exhausted, improving the range hood’s performance and ability to clear smoke, steam, and odors from the kitchen.
Thick and Rust-Resistant Hood Body
The hood body should be made of rust-resistant stainless steel. A thicker body offers several benefits:
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Stronger overall construction
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Reduced noise
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Easier cleaning
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Greater durability
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Less likelihood of scratches
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A sturdier, more stylish appearance
Multi-Speed Sealed Control Panel
The fan speed should be adjustable to suit the type of cooking you’re doing. For lighter meals, you won’t need to use the system at full power. A sealed control panel protects the components from grease buildup, preventing malfunctions and improving longevity.
LED Lighting
Good lighting is crucial in the kitchen, and the range hood’s lighting plays a key role. LED lights provide brighter, more efficient illumination and come with several advantages:
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Energy savings
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Cooler to the touch
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Reduced electricity consumption
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Longer lifespan
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Low heat output
Less and Easier Maintenance
Range hoods with aluminum filters or no filters at all require disassembly for cleaning inside the hood body. In contrast, range hoods with baffle filters don’t need internal cleaning, and baffle filters are dishwasher-safe for easy maintenance.
CEC CFM Testing
The state of California requires CFM testing per Title 20 under certain conditions, to ensure the range hood meets energy efficiency standards.
Frequently Asked Questions
1. What is a Baffle Filter?
Baffle filters in range hoods use a series of inverted cup-shaped “baffles” that cool the greasy, moist air as it passes through. This process condenses and traps oil, allowing the grease and moisture to flow down into a lower trough, where it’s held until cleaning. The popularity of the commercial-style kitchen has driven a high demand for baffle filters. These filters contribute to a professional, industrial appearance, with the extra expanse of stainless steel beneath the range hood. Performance-wise, baffle filters allow for better airflow but may trap slightly less grease than other filter types.
2. What Size and CFM Are Recommended for Residential Kitchen Range Hoods?
Most people choose a range hood that matches the width of their range, but interior designers are increasingly pairing larger hoods with smaller ovens. The wider stainless steel design lends a more serious, commercial feel to the kitchen. Since smoke and steam rise from the cooktop, a wider range hood makes sense, as it allows lower fan speeds to be more effective. A good rule of thumb is to have at least 50 CFM per square foot of cooktop space. For example, a 36-inch wide range would require a range hood with a minimum of 300 CFM for non-recirculating systems.
3. How Far Can I Run My Ductwork?
To optimize performance, keep the ductwork as short as possible and limit the number of 90-degree bends. The longer the duct and the more it changes direction, the more air pressure builds up inside, which reduces the effective CFM and overall efficiency of the range hood.
4. Can I Duct the Range Hood into My Attic or Crawl Space?
No. Never exhaust air into spaces like walls, ceilings, attics, crawl spaces, or garages. Humidity and grease can accumulate in these areas, leading to potential damage and poor air quality.
5. What is the Difference Between a Ducted and Ductless Range Hood?
A ductless range hood, often referred to as a "recirculating" hood, filters the air—usually through carbon filters—and then returns the filtered air back into the kitchen. In contrast, a ducted range hood does not use charcoal filters. Instead, it vents the air outside the house through ductwork, which is typically 6” to 10” in diameter, depending on the size and air removal requirements. Ducted range hoods are generally preferred for better air quality, but in some cases, ductless options may be the only feasible choice.
6. What Type of Electrical Connection Do I Need?
Range hoods should not be direct-wired. All XtremeAIR brand range hoods come with a standard grounded plug. The electrical connection required is a 110V/60Hz grounded outlet.
7. What Caution Should I Take When Cleaning the Interior of Range Hoods?
Warning: Always turn off the range hood before cleaning the interior. Avoid spraying cleaner directly onto the light bulb or light socket. Keeping the interior clean will help the motor run more smoothly and maintain optimal performance.
Glossary
Range Hood
A kitchen appliance that hangs above the cooking surface—such as a gas range, oven range, or similar—designed to exhaust heat, odors, steam, and gases (such as CO2) generated from imperfect combustion during cooking.
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Kitchen Exhaust Fans
A fan used for ventilating the kitchen by drawing air from the interior and expelling it outside.
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Insert
A range hood insert (or liner) is a ventilation appliance specifically designed to be installed inside a custom-built enclosure or kitchen cabinet. These inserts don’t have their own housing and must be mounted inside an enclosure.
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Under Cabinet Mount
A range hood designed to be installed under a cabinet. Historically, these were among the least expensive options compared to island- or wall-mounted hoods. However, modern kitchens now feature under-cabinet hoods ranging from 30" to 60" in width. Basic economy models have limitations such as smaller blower power, reduced duct size, and minimal design impact. They generally need to match the cabinetry, limiting style options.
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Wall Mount
A range hood designed to be installed directly on a vertical wall above the cooking surface, as opposed to an island-mounted range hood.
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Island Mount
A range hood designed to be installed on the ceiling above the cooking surface, as opposed to wall-mounted range hoods.
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Mounting Height
The distance between the cooking surface and the range hood. For optimal performance, the range hood should be installed 26" to 31" above the cooktop (30 inches is the typical standard).
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Height Adjustable
Refers to island- or wall-mounted range hoods with a vertical chimney whose height can be adjusted to fit various ceiling heights. This feature does not apply to under-cabinet or insert/liner hoods, as they do not have a chimney. Also called a “Telescoping Chimney” or “Adjustable Chimney Section.”
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CFM
CFM stands for “Cubic Feet per Minute,” a measurement used to quantify the airflow capacity of a range hood. It indicates how much air the fan can move per minute and is used to determine the effectiveness of the range hood’s extraction power.
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BTU
Acronym for “British Thermal Unit,” a measurement used to quantify the heat output of gas-powered appliances, such as stoves and ovens.
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Sone
A unit of perceived loudness that measures how loud a sound feels. One sone is the loudness of a 1,000-hertz tone at 40 dB above the threshold of hearing.
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Ducted
A range hood that uses ductwork (“air pipe”) to expel air outside the house. Ducted range hoods remove airborne pollutants directly, without the need for carbon filters, offering higher performance and reduced noise compared to ductless systems.
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Ductless
Also known as “recirculating” or “ventless,” a ductless range hood filters air using a combination of grease and carbon filters before returning the cleaned air to the kitchen. This type of system does not use ducts to expel air outside.
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Backdraft Damper
A valve (spring-loaded or gravity-operated) installed inside the ductwork. When the range hood is on, the valve opens, allowing polluted air to be exhausted outside. When the fan is off, the damper closes to prevent outside air from entering the duct.
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Blower
The core component of a range hood that moves air. While the terms “fan” and “blower” are often used interchangeably, blowers are designed to move air at higher speed and pressure. Blowers can be categorized by their location:
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Internal: Inside the range hood unit itself.
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Inline or Remote: Located outside the range hood (e.g., in the attic or between joists).
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External: Positioned outside the house, in a weather-resistant enclosure.
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Grease
One of the types of airborne pollutants produced during cooking. It can combine with other substances to form a sticky film on kitchen surfaces and can damage cabinetry by fostering mold and fungal growth. Range hoods use grease filters to capture airborne grease.
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Grease Filter
A cartridge or cassette made of layers of metal mesh that traps airborne grease. Grease filters are typically made from anodized aluminum and do not need to be replaced, although they should be cleaned regularly.
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Carbon Filter
A cartridge or cassette filled with activated charcoal that is used to filter contaminants from the air. Required in ductless range hoods, carbon filters remove pollutants after airborne grease has been trapped by grease filters. Carbon filters cannot be cleaned and should be replaced every few months, depending on cooking frequency.
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Inline Blower
A blower motor unit located outside the range hood but still within the house, such as in the attic or between ceiling joists. Inline blowers reduce noise, similar to external blowers, but do not require an outdoor-rated enclosure.
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Steam
Water vapor produced during the cooking process. Steam acts as a carrier for other airborne pollutants and can condense on kitchen surfaces, potentially damaging cabinetry and fostering mold growth.
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Tempered Glass
Glass that has been toughened through a special process to increase its strength. Tempered glass is highly resistant to breakage and, once tempered, cannot be cut or modified, making it ideal for range hood panels. All mounting holes and beveled edges must be cut before tempering.
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