Have a Question?

Air King provides answers to some of the most commonly asked questions regarding Exhaust Fans, Range Hoods, Air Circulator Fans, and Chimes. Find answers to questions such as "How much ventilation do I need", "How long should my exhaust fan run?" and more. Click on any of the links to the right for more information.

On most Range Hoods the model number is located on a sticker on the inside of the hood. You may need to remove the filter in order to see the model number.

MAKE SURE POWER IS SWITCHED OFF AT SERVICE PANEL BEFORE SERVICING THE UNIT. Clean your range hood with a mild detergent, such as dish washing liquid, and dry with a soft cloth. NEVER USE ANY ABRASIVE PADS OR SCOURING POWDERS. Completely dry before restoring power. NEVER IMMERSE ELECTRICAL PARTS IN WATER. The fan assembly can be vacuumed when build up (dirt, lint, etc.) accumulates over time.

Instruction sheets (user manuals) can be downloaded from this website. They are available on the product page in the "Downloads" tab or can be accessed on the main page of the site by clicking on the Installation & User Manuals link, then using the search box.

The function of a range hood is to prevent flare ups from the cooking surface from burning or in extreme case catching the cabinets above the cook top on fire. Range hood can also provide ventilation, helping to clear the cooking area of smoke, steam, odors, and grease generated from the cooking surface.

Although there are many factors that will determine what size exhaust fan you need, as a general rule, the following will apply: For under cabinet range hoods or hoods mounted against a wall the minimum air flow (CFM) is 40 CFM per linear foot. So a 36" range hood should provide a minimum of 120 CFM of exhaust. This is a mimum. the recommended amount is 100 CFM per linear foot. For a range hood mounted from the ceiling (island mounted range hood), the rates are higher. A minimum of 50 CFM and a recommended rate of 150 CFM per linear foot NOTE: Always consult any applicable building codes in your area in regards to minimum and maximum air flow rates. Certian states may require additional items such as make-up air for larger CFM range hoods (typically over 300 CFM).

As the name implies a ducted range hood ventilates the air in the cooking area outside through ductwork. A ductless or duct free range hood filters the air through a charcoal odor filter and recirculates the air back into the cooking area. A ducted range hood will be more effective and efficient at ventilating the cooking area, but in situations where ductwork is not an option a ductless range hood is a good alternative.

Cubic Feet per Minute. Unit of measure for how much air is exchanged in one minute of time. The higher the CFM the more "powerful" the exhaust fan is.

A sone is an internationally recognized unit of loudness. The sones translate laboratory decibel readings into numbers that correspond to the way people sense loudness. Double the sone is double the loudness. In everyday terms, one sone is equivalent to the sound of a quiet running refrigerator in a quiet kitchen. The lower the sone, the quieter the exhaust fan is.

With a ductless range hood, because the air is being recirculated and there is no actual ventilation taking place, there is no standard for measuring the CFM or the sone rating.

NO. The actual size of the range hood will be slightly less than the generic description of the range hood. For instance a 30" range hood will most likely measure 29-7/8". Refer to your particular model for the exact width.

Your grease filter should be washed in hot water with detergent once a month. Make sure the filter is completely dry before reinstalling. Replace the grease filter if it becomes damaged, or too dirty to clean.

NO. Charcoal odor filters cannot be washed and must be discarded and replaced when they become noticeably dirty, have stopped filtering the odors, or at least once per year.

Air King recommends that the range hood be mounted between 20" and 30" from the cooking surface for maximum performance. As always - make sure to consult and adhere to your local and National codes when installing a Range Hood.

To maximize your range hood's performance, match your duct size to the original size of the fan’s ducting, use the shortest amount of ducting possible and keep the ducting as straight as possible. ALWAYS USE METAL DUCTWORK and avoid flexible ducting when possible.

YES. To help make the transition easy, make sure you know if the current unit is ducted or ductless, and if it is ducted, which way the ducting is running and the size. This will help you choose a proper replacement. When replacing a microwave, you will want to consider the height of the microwave compared to the height of the range hood and you might need to make height adjustments to insure proper ventilation.

YES. If installing a range hood that has duct work connected to it (any hoods that do NOT recirculate the air back into the room), to properly exhaust air, be sure to duct air outside. DO NOT vent exhaust air into spaces within walls or ceilings or into attics, crawl spaces, or garages. A build up of humidity and grease could cause damage and/or a fire risk to your home.

Check the filter for build up and clean or replace if needed. If the difficulty still persists, check for obstructions in the ductwork. A common obstruction is build up in the roof or wall cap such as birds nests or other debris.

This is probably attributed to one of the following: 1. The motor is loose - turn off power to the unit, remove the filter and check that all screws are fully tightened around the motor. 2. The ductwork connection is loose - turn off power to the unit and check that the ductwork connect to the hood is tight. Add ducting tape if necessary.

When the range hood ventilates the air out of the home, the amount of air ventilated needs to be replaced. This is called make-up air or is sometimes referred to as balanced ventilation - balancing the amount of air coming in and out of the home. For older homes the air taken out is typically replaced through what is called natural air infiltration - commonly known as drafts in the home. For newer and tighter constructed homes, a mechanical solution is needed to bring fresh air into the home. Depending on the airflow (CFM) of your range hood, even older homes may need a solution for make-up air. If there is not enough make-up air, the performance of your range hood may be diminished and your indoor air quality could be compromised. Air King has many fresh air solutions to choose from.

1. Check that there is power to the range hood. The most common trouble is the circuit breaker is off or there is a blown fuse. 2. Make sure a speed has been selected at the range hood's controls. 3. Turn off power to the range hood and check that all wires are properly connected. Refer to your specific model's installation instructions for proper wiring instructions.

Replacement parts can be ordered from the parts department by calling 1-800-465-7300 Monday thru Thursday 8am to 4pm, Friday 8am to 3pm Eastern Standard Time.