Range Hood Noise Levels: How to Measure and Reduce Vibration

Kitchen range hoods eliminate smoke, odors, and oil particles while you cook. But many complain that their range hoods make a lot of noise, which affects the comfort of cooking. How much noise should this actually be? How is noise level measured? And how can you reduce this noise? In today’s article, we will discuss these issues in detail.

How is the Range Hood Noise Level measured?

There are several standard methods commonly used to measure the noise level of a range hood. This noise level is usually expressed in Decibel (dB) units. Decibel is the unit of measurement of noise intensity. The higher the dB, the higher the noise.

Standard Methods Used for Noise Measurement

• ANSI/AMCA S12.47 Standard: According to this standard, the noise level of the range hood is measured when the hood is running at maximum speed. Usually, this noise level can be from 50 dB to 70 dB.
• ISO 3744 Standard: This internationally recognized standard is used to measure noise level. Here, the noise is measured from a certain distance (usually 1 meter) to measure the noise level.
• AHAM HRF-1 Standard: The American Home Appliance Manufacturers Association (AHAM) developed this standard. Here, a noise sensor is placed in front of and to the side of the hood to measure the noise level.

Common Scale of Noise Level

See the scale below to understand the intensity of the noise level:

The noise level of an ideal range hood should generally be between 50-60 dB. If the noise level is more than 65 dB, it can be uncomfortable.

Main sources of range hood noise

The main sources of range hood noise are:

• Fan Motor: The fan motor is the main source of noise. The higher the fan speed, the higher the noise.
• Vibration: Fan motors, filters, or other parts of the hood may vibrate, which creates noise.
• Airflow: When air flows, friction and turbulence are created in different parts, which can cause noise.
• Duct System: If the duct system is not installed properly, the noise may increase.
• Plastic or Metal Vibration: Various parts of the hood, such as plastic frames or metal panels, can produce noise due to vibration.

How to Reduce Range Hood Noise

There are some effective ways you can follow to reduce the noise of the range hood. Below is a detailed discussion:

1. Buy a range hood with a low noise level

When you buy a new range hood, choose a model with a low noise level. Generally, range hoods with a noise level between 50-60 dB produce less noise. Some reputable brands such as Bosch, LG, KitchenAid, and Broan make models that are less noisy.

Note the following points while buying:

• Noise Rating: The noise level is mentioned in the product specification. The lower the dB, the lower the noise.
• Inverter Technology: Some range hoods use inverter technology, which helps reduce noise.
• Ductless vs. Ducted: Ducted range hoods generally produce more noise because the airflow is greater. On the other hand, ductless range hoods produce less noise.
• Fan Speed Settings: The higher the speed setting, the easier it is to control noise.

2. Install properly

Noise may increase if the range hood is not installed properly. Note the following points during installation:

• Correct Height: Install the range hood at the correct height above the range. Typically, it should be installed 24-30 inches above the range.
• Duct System: Install the duct system properly. If the duct is too long or has many bends, noise can increase.
• Ventilation: Ensure that the duct system is well ventilated.
• Stable Installation: The range hood should be firmly attached to the wall or ceiling. If it is loose, noise may increase.

3. Do regular maintenance

Regular maintenance of the range hood helps reduce noise. Check the following regularly:

• Clean the Filter: Clean the grease filter and carbon filter regularly. If the filters become dirty, the airflow decreases and the noise increases.
• Clean the Fan Blades: If dust accumulates on the fan blades, noise may increase. Clean the fan blades regularly.
• Check Vibration: If the range hood produces abnormal noise, check the vibration. If any part is loose, tighten it.
• Lubrication: Apply regular lubrication to the fan motor bearings. It will help reduce noise.

4. Additional features to help reduce noise

There are some additional features that help reduce noise. For example:

• Sound-Absorbing Materials: Some range hoods use noise-absorbing materials, which help reduce noise.
• Dual Motor System: Using a dual motor system reduces noise because two motors together produce less noise.
• Variable Speed Control: With variable speed control, you can control the speed according to the noise.
• Anti-Vibration Mounts: Some range hoods use anti-vibration mounts, which help reduce vibration.

5. Home ways to reduce noise

You can also reduce noise with some home remedies. For example:

• To reduce noise in the room: Use noise-absorbing materials such as carpets, curtains, or noise panels on kitchen walls.
• Change the position of the range hood: If possible, install the range hood on the other side of the wall where the noise is less.
• Soundproofing: If noise is too much, use soundproofing material. For example, installing noise-absorbing panels on the walls.

Step-by-Step Guide to Troubleshooting Range Hood Noise

If abnormal noise is coming from your range hood, follow the steps below:

Step 1: Find the Source of Noise

First, find the source of the noise. Is the noise coming from the fan motor, or from vibration? If the noise is coming from the fan motor, clean the fan blades. If the noise comes from vibration, check the vibration.

Step 2: Clean the Filter

If the noise is caused by a dirty filter, clean the filter. Clean the grease filter and carbon filter regularly.

Step 3: Lubricate the Fan Motor Bearings

If the noise is coming from the fan motor bearings, apply lubrication to the bearings. It will help reduce noise.

Step 4: Check Vibration

If the noise is from vibration, check the various parts of the range hood. If any part is loose, tighten it.

Step 5: Check the Duct System

If the noise is coming from the duct system, check the duct system. If the duct is too long or has many bends, fix it.

Step 6: Get Professional Help

If the noise does not subside after following all the steps above, call a professional technician. He can find the cause of the noise and solve it.

Best Low Noise Range Hood Brands

Currently, there are many brands in the market that produce range hoods that produce less noise. Below are the names of some popular brands that are well-regarded in terms of noise level.

Factors to consider when choosing a brand

When selecting a low noise range hood, not only the noise level but several other important factors must be considered. They are discussed in detail below:

• Motor Type: Range hoods with inverter motors generally produce less noise and are energy efficient.
• Filter System: Models with auto clean or washable filters are more convenient for maintenance.
• Build Quality: Range hoods made of stainless steel or tempered glass are more durable and do not corrode easily.
• Warranty: Good brands usually offer a warranty of 2-5 years.
• Price vs. Performance: Models that produce the least noise are usually more expensive. So select the model with the best noise level in your budget.

Low Noise Range Hood Price and Availability in the US Market

Low noise range hoods are easily available in various electronics markets across the US. Below are some popular retailers and their price ranges:

Also, online marketplaces like Amazon, Wayfair, and Home Depot offer low noise range hoods. Be sure to check the reviews and ratings carefully while buying online.

Additional Tips to Reduce Range Hood Noise

The noise level can be further reduced by following some additional tips along with choosing a range hood that produces less noise. They are discussed in detail below:

1. Select the range hood according to the size of the room

• If your kitchen size is small, choose a range hood with a low noise level.
• Choose a higher CFM range hood for larger kitchens, as higher CFM hoods generally produce more noise.

2. Determine the height of the range hood properly

It is very important to place the range hood at the correct height from the stove. If the range hood is placed too low, the noise level may increase. Generally, the height of the range hood from the stove should be 24-30 inches.

3. Improve room acoustics to reduce noise

Using noise-absorbing materials such as foam, carpet, or special paint on kitchen walls can help reduce noise levels. Also, kitchen doors and windows should be well sealed so that noise does not escape.

4. Do regular maintenance to reduce noise

• Clean the filter at least once a month.
• Lubricate fan motor bearings regularly.
• Keep the inside of the range hood clean regularly.

Conclusion

Reducing the noise level of a range hood requires not just one factor but a combination of factors. From standard methods of noise measurement to finding the source of noise, regular maintenance, and choosing a brand that produces less noise—all are equally important.

If you want to buy a low noise range hood, you must pay special attention to the noise level (dB) and motor type. Range hoods with inverter motors generally produce less noise and are energy efficient. Also, proper installation and regular maintenance of the range hood is very important.

Hopefully, by reading this article, you have got a clear idea about low noise range hood selection and maintenance. If there is any problem with the noise level of your range hood, then you can follow the steps mentioned above. Don’t hesitate to seek professional help if needed.

Finally, consider your budget, kitchen size, and required features when choosing a low noise range hood.