Top 10 Quietest Duct Fan Reviews in 2021: Read This Before Picking One

It is indisputable that any ventilated place needs a duct fan to exchange the air in and outside the room. Nonetheless, it is a big challenge to keep the space silent since many duct fans are too loud and become an annoying and irritating thing that disrupts people from work or relaxing in their room. Because of this, many people want but really struggle to find the quietest duct fan now on the market. But don’t worry, we have done this for you.

By researching and testing numerous duct fans on the market, our expert team has found the top 10 quietest fans that work well and make almost no noise. Below we have written a review about the quality and how each fan works, and for which kind of space it works best. We also leave a buying guide at the end of the post to help you find the one that suits best for you.

Best Quietest Duct Fan Comparison 2021

** Below, you will find our detailed reviews of the Quietest Duct Fan, but you can also click these following links to see current prices or read customer reviews on Amazon.

Top 10 Quietest Duct Fan Reviews 2021

Can Fan 340440 

Coming from one of the leading companies that produce high- end duct fans, Can Fan 340440’s performance is admirable. Believe it or not, this product can move as much air as an average fan in twice less time due to the fact that it was produced by the Computational Fluid Dynamics (CFD) program which is used for engineering aircraft propulsion engines, and its 3D blades of the impeller and stator. 

Thus, this model is more efficient and at the same time, energy saving than most of its competitors.

The guarantee of the fan is 5 years. It is also durable and because of this reason, you may not need to look for a new one for a very long period of time. This will save you money and time very much.

Pros:

  • Made from high-quality German material
  • Very heavy duty
  • Efficient, powerful

Cons:

  • Assembly required

Can Filter Group HGC736748

Can Filter Group HGC736748 Can Max Pro Series Inline Mixed Flow Fan with 3-Speeds & EZ Mount Bracket-ETL Listed, 8" - 863 CFM, 120 Volt, Black
  • Max-Fan Pro Series Is Even More Efficient And Stronger Than The Original Max-Fan Design, The Max-Fan Pro Series Has A Much More Robust Housing Due To The Fiberglass Reinforced Plastic Compounds That Meet All Of The Ul And Csa Requirements
  • The Fans Have Three Control Speeds For True Performance

It is no exaggeration to say the Can Fan HGC736748 is the cream of the crop in the duct fan world. Stronger and much more powerful than the ordinary Max- Fan, this fan has a robust performance thanks to built-in 3-speed controller. 

Furthermore, this product is amazingly energy efficient owing to the optimized mixed flow. Being produced in Germany, this model is a high quality fan which is heavy duty. You will not need to look for a new fan as you buy this Can Fan.

The most prominent feature of this product is that it is probably the quietest fan on the market. Because of the Fiberglass composite housing, this model runs so smoothly that you may not even recognise its appearance in the background while you are working or relaxing. 

Because of all these outstanding characteristics, we highly recommend this product. You will not be disappointed by it as this fan fulfills all the requirements for a brilliant duct fan: effective and quiet. Click in and buy now.

Pros:

  • Durable
  • Highly efficient
  • Saves a lot of energy
  • Quiet operation

Cons:

  • None

 TerraBloom ECMF-250-R

TerraBloom ECMF-250-R, Quiet 10" Inline Duct Fan with Wireless Remote Speed Controller, Air Tight Metal Casing, Energy Efficient EC Motor. Heating and Cooling Booster and Exhaust Blower For Grow Rooms
  • Powerful airflow and extreme energy efficiency - ECMF series 10 inch inline fans are perfect for a wide range of ventilation applications that require quiet and strong directional air movement.
  • Built with aerodynamically optimized mixed-flow impellers in a compact, air tight metal casing and powered by a fully speed adjustable EC motor.

With a modern and simple design, the TerraBloom ECMF-250-R leaves a good impression on many buyers at first sight. Nevertheless, it is not only the stylish design of this model that make it the top seller but also its admirable characteristics. 

Incorporating the cutting edge brushless electronically commutated Motor (EC) motor and dual jet type impeller, this fan can deliver  946 Cubic Feet per Minute (CFM) of Airflow consuming only 126 Watts. Because of this, if you are looking for a cost saving and energy saving duct fan, you may want to consider this product.

What is so outstanding of this duct fan is that it is quiet and speed adjustable. Featuring speed controller, speed of this model can be easily changed without making any background noise. Constructed with cold rolled steel housing, this fan has a strong resistance to damage and becomes very heavy duty. Created with the size 12.13″ (L) x 7.87″ (W) x 8.94″ (H), this TerraBloom can fit minimal space.

Pros:

  • Energy saving
  • Powerful
  • Fit in small space
  • Quiet

Cons:

  • Assembly required

AC Infinity CLOUDLINE T8, Quiet 8”

AC Infinity CLOUDLINE T8, Quiet 8” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
  • Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
  • Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.

We would say that this AC INFINITY CLOUDLINE is one of the quietest duct fans on the market. It can operate at high settings with almost no noise that you might not hear it from the background. Its quiet operation gives it an edge over its competitors.  This model can be adjusted completely in terms of the temperature, humidity and fan speed. Incorporating a timer and alarm system, this duct fan provides buyers with a range of functions.

The most admirable characteristic of this fan is that it allows people to adjust humidity, which is so important as too high humidity can be very harmful to plants for people who use this fan for growing plants. 

Pros:

  • Allows people to adjust humidity
  • Powerful
  • Quiet

Cons:

  • Not durable

Vortex 347 CFM S Line

Vortex 347 CFM S Line S-600 Fan, 6"
  • The s-line is a revolutionary series of fans that combine energy efficiency, ultra-quiet operations and a collection of advanced technologies that deliver unparalleled performances.
  • An extremely energy efficient ac brushless motor powers the patented mixed-flow dual impellers.

Making a deep impression on many consumers thanks to the stylish design, Vortex 347 CFM proves itself to be worth the money with its desirable features. This product is very energy efficient owing to its ac brushless motor powering the patented mixed- flow dual impellers. Incorporating double insulated walls, this model can be ultra quiet, the noise is reduced to a minimum level in order to not irritate the users.

This Vortex 374 CFM has a 120vac 60hz motor, making it very powerful and efficient. The body of this duct fan has high impact resistant polycarbonate casing so that it is extremely heavy duty, durable and damage resistant. 

Another thing is that this fan is 100% speed controllable so you can easily adjust the speed to make it fit for your use. This is also very compact and can fit a small space.

Pros:

  • Quiet
  • Powerful
  • Compact

Cons:

  • None

Can Fan GL56736746

Can Fan GL56736746 736746 Fan, 6"
  • The fans come with the EZ Mount bracket for easy mounting.
  • The fans have three control speeds for true performance.

Being in the same Pro series with the Can Fan 340440, Can Fan GL56736746 also has many desirable features that catch the attention of consumers.This fan is more efficient than most of its competitors on the market. The duct fan can exchange the air to clear in your grow room in one or two minutes using less energy. This will save you a great amount of money. 

What is so prominent is that duct fans in this Pro series are upgraded to operate quieter. So you don’t need to worry about the noise it makes while working or relaxing in your room.

Pros:

  • High efficiency
  • Quiet operation
  • Great design
  • Durable

Cons:

  • Hard to assemble

Vortex Powerfans VTX1000

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Vortex Powerfans VTX1000 Vortex 790 CFM Powerfan, 10 inch with Ventech Fan Speed Controller
  • Extended collar and lip; allowing easy duct hook-up
  • Impact-resistant; sound-absorbing heavy gauge steel casing

This Vortex Powerfans may be the most durable duct fan now available. This is due to its steel casing and the epoxy finish with rust resistant powder. So, the duct fan is very durable and resistant to impact. It also incorporates extended collar and lip, this enables easy duct hook-up. 

This fan also allows you to adjust the speed to fit your needs. If you are the one who wants to control any bit of the speed, the Vortex can be the fan that you want to purchase.

Pros:

  • Great durability
  • Can be attached to a duct
  • Rust resistant exterior

Cons:

  • Assembly required

Hydrofarm ACDF8

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Hydrofarm ACDF8 Active Air Inline Fan, 8 Inch, Green
  • Active Air inline duct fans offer innovation & performance at a great price.
  • Active Air inline duct fans incorporate Brushless thermally protected AC motors with sealed for life Bearings (will not require any lubrication).

This fan is in the middle between the high end products and the ordinary ones. So, if you are not a professional but still want to grow your plants well, this might be the duct fan you want. This fan is very light and compact owing to the aluminum construction. Nonetheless, this fan only has one size.

This is worth your money and is durable. So you should give it a try to enjoy its quality and plant your trees efficiently.

Pros:

  • Affordable
  • Light 
  • Portable

Cons:

  • In one size

HYDRO PLANET

HYDRO PLANET 8-Inch CFM 800 Inline Fan with Built-In Speed Controller, Carbon Filter and 25-Ft Ducting Combo Kit
  • Join Thousands of Satisfied Customers for HYDRO PLANET Inline Fan Combo Kit for Grow Tent Ventilation.
  • 8-INCH INLINE FAN - High efficient inline fan with built-in speed controller is able to move air through carbon filter and long stretches of ducting or grow light reflectors. Volt: 120V/60HZ; Amperage: 1.62A; RPM: 2860; CFM: 800; Noise DB: 70.

The Hydro planet fan is a duct fan that you should take into account. It is  a very efficient inline fan featuring speed controller. Thus it can control the air through carbon filters and long stretches of ducting. 

This duct fan is also very durable so that the buyers don’t have to look for a brand new one for a long period of time. It is rust resistant so you don’t need to clean it recently. It has a 2 year warranty so if it does not operate as you wish, you can get it fixed within this time.

Pros:

  • Efficient
  • Very heavy duty

Cons:

  • Not so quiet

Fantech Rn3

Fantech Rn3 Radon Fan 6" Duct - 285 cfm
  • Standard 6” pipe size
  • 85Cfm @ 0.50”Sp and 57Cfm @ 2.0”Sp

This is also a good duct fan that is worth considering. With an elegant look, this fan can make your room look stylish. This fan is also efficient, moving air from inside the room to outside that space, making your space ventilated. It is also heavy duty since the materials are high quality. 

You should give this duct fan a shot as you won’t regret it.

Pros:

  • Powerful
  • Durable

Cons:

  • Not quiet

Buying Guide: What You Should Consider To Buy The Quietest Duct Fan

There are for sure many things to take into consideration before you want to buy something that is relatively high in cost. Because of that, knowing precisely what you need before purchasing will help you make an informed choice, save you a lot of money and also help you choose the products that are high quality.

Regarding duct fans, they are of significant importance in keeping the air in your room moving and making the space well ventilated. However, for them to reach ultimate effectiveness, you need to choose the right duct fan that fits your needs and your room, considering many factors such as size, power and noise. 

Our expert team has carefully researched what factors most influence the run of duct fans. So, there are a few factors that you should take into account before buying a duct fan that our expert team recommended, including size, power rating, noise, heat form lighting, humidity, carbon filter.

Duct Fan Size

It is without a doubt that size usually plays a role in the operation of the product, nonetheless just in terms of the amount of atmosphere you want in your room and it also relies on the size of the place. For instance, a grow tent with the size 10×10 can require a duct fan higher power than a closet with the size 2×2. First thing first, you need to know your space before choosing the size of the duct fan you want to use.

After that, it is essential that you measure the space that you will place your fan. Every space in the room is to be measured since you may waste your money buying an expensive fan that does not fit your space or your needs. 

Furthermore, by measuring your space. you can decide how you place the fan, whether you hang it outside your space, inside or attach the duct fan to the floor or ceiling. So visualise the space before purchasing does mean a lot and help you decide which size best fits your place.

There are in fact a lot of sizes of duct fans, from 4” to 18”. Such a number of sizes does sometimes confuse buyers.

Some consumers pick big size fans as their room is relatively large and needs to be ventilated, whereas some may choose small size since their space is small and a large size fan is not necessary for the space.

Power Level

Another thing that you want to take into consideration before buying a duct fan for the space is the power rating of that fan. This is usually measured in cubic feet per minute, in short CFM. Different spaces require different CFM, so you want to know what is the CFM requirement of your room in order to choose the quietest duct fan that suits your place best.

Our team can guide you on how to decide the power requirement of the product is needed in your place by measuring the height, the width, and length of your space.

After you have measured all the needed dimensions we have mentioned, multiply such three dimensions to measure the volume of your room. Many people have found that 3 minute is the ideal time your duct fan should take to pull entirely the stagnant air in your space out. So, divide the volume by 3 and you will know the CFM that your room needs.

The CFM requirement of your space will increase if you add other devices or things into your duct fan, for instance ducting, the carbon filters, and heat. So it is necessary that you consider this to know precisely your CFM requirement and choose the right duct fan. It is very important to know your CFM requirements in advance when you buy a fan as it is a waste of money and time if you find the fan has no sufficient power to take out all the hot air or maybe too large that it is not necessary.

Noise Level

One of the most prominent factors that you should take into account before purchasing a duct fan is the noise level. It is because most people get annoyed by the noise of duct fans and people living with you may complain about the noise that it causes while operating, you would want the quietest duct fan out there. SInce you definitely don;t want to be irritated by the noise from your fan while you are doing your tasks or relaxing, the noise level should be one of the most important features of your duct fan.

In fact, many duct fans at present are quieter than those sold 5 years ago. Nevertheless, you should buy the quietest duct fan on the market.

A number of producers do put their products in special housing so that they are able to reduce the noise from the fan to a very low level. For instance Can Fan 340440 is so quiet that you may not notice the noise from it in the background and may not be annoyed by the noise because it incorporates a housing that decreases the noise.

Heat From Lighting

So, does a high heated grow room make you physically unwell or uncomfortable in your room? Then, a duct fan can solve the problem since it is able to exhaust this tamed air from your space. In addition, they will replace heat with the air from outside, making your room more ventilated.

The lighting of your space will play  a role in determining the power level that your duct fan requires.

Inline fans reduce the heat of your grow spaces by taking in air from outside your space and releasing the heat out of the space through ducting that’s connected to lights.

The ducting particle is directed outside the room, or to  other places. Your duct fan will push or pull the stagnant air out of the room so that it can maintain the temperature of the space at an appropriate level.

Humidity

Every grower knows that mold and fungi are very detrimental for their plants since they are able to destroy your entire grow room for weeks.

Humidity could be the main cause that improves the growth of such insects, and duct fans are always a brilliant choice to solve the problem of high humidity in your room, thereby preventing the growth of such unwanted things.

Initially, you should decide in what season you will grow your plants in. And then, you should know in detail the humidity level of the area you want to grow plants in.

That information of those two things can say which duct fan can work for your space.

In case the rooms are not well ventilated, the atmosphere can be stagnant and contain a great amount of moisture. As time goes by, it is likely that you will encounter problems, it can be powdery mildew.

The flow of clean air that moves through your grow room can notably decrease the humidity, thereby reducing the possibility of a serious plant disease that can completely destroy your plants.

Carbon Filters

If you are finding a thing that will scrub the smell of your grow room, you might want to take the carbon filter into account, 

Carbon filters are able to scrub the smell, and there are a number of sizes depending on the size of your room.

Duct fans operate in cooperation with those carbon filters since they are attached to them. In most grow rooms, a carbon filter is connected to a duct fan so that they can work at maximum efficiency.

The reason for this is that a carbon filter requires a duct fan to exchange the air out the particles of it and keep it ventilated.

Advantages Of The Quietest Duct Fans

It is undeniable that duct fans, carbon filters and dehumidifiers are of paramount importance in keeping the right state for every grow room.

Purchasing the quietest duct fan will help you make sure that your plants are always in the ideal state with fresh air constantly flowing.  

With a duct fan, you will not have to spend a gigantic amount of money on things such as air conditioning and that way you can save a great amount of money and time. 

A duct fan can solve a wide range of problems that you can have when you grow plants. It releases the stagnant air in your room outside and takes in fresh air from other places. In that long process, it has to efficiently transfer the air through a number of things like carbon filter, ducting, and lighting.

That is the reason you want to have a duct fan as it is crucial to make your space ventilated.

Do You Need a Speed Adjuster?

Speed controllers are nice, but they’re not necessarily a must. In case your fan is already in the CFM you need, it is likely that you will not have to use it at all.

If you want to have a fan that has a higher power than your space requires for your space because you want to expand it in the future, a speed controller is a brilliant choice since you can adjust the speed of the fan due to your want. A speed controller allows you to turn the fan’s CFM from its highest level down to the speed level that best fits your place. So, in a nutshell, a speed controller helps you adjust the speed to the range that your room requires and it is essential if you want to expand your space. 

And here is a video about how to install a duct fan in your space.

Here Is Our Final List of Top 5 Quietest Duct Fan 2021

It is without a doubt that a duct fan is of paramount importance to maintain your space to be ventilated and full of fresh atmosphere. In spite of its functions, there are many factors that you have to think carefully about before buying one. The most important is the noise level of the fan as you definitely do not want to be annoyed by the noise of the fan while you are working or chilling in your space. 

That is why our expert team has researched in detail a range of duct fans and here we want to give a list of the quietest duct fans that we strongly recommend for anyone who is going to buy one. Below is the list of the quietest duct fans, for what they are best for and the buying information of those products:

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