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AC Infinity CLOUDLINE T6, Quiet 6" Inline Duct Fan with Temperature Humidity Controller


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VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent
Formline Supply Quiet 4 inch Inline Duct Fan with Variable Speed Controller - 190 CFM Exhaust Blower Provides a Durable Low Noise Solution for Grow Tent Ventilation

Growing marijuana and other herbs indoors can be fun. It allows you to have total control of the conditions, letting you nature healthy plants right from the early (vegetative) stage to the harvest. For cannabis growers, there’s a lot you need to consider before you can even bury those seedlings. In addition to having the best grow tent and nutrients, you need to invest in a fan as well.

A grow fun provides just the right temperature for your cannabis, guaranteeing you tasty and potent buds. It takes charge of air circulation for your plants to flourish. The only problem with these devices is deciding on the perfect fit for your grow room. There are hundreds of options out there, but only a handful of them have been proven to deliver as expected.

To help you in this journey, we have reviewed some of the best fans for grow rooms, and even gone an extra mile to provide you with some of the things you need to keep in mind to ensure you pick the right option. It’s time you grow your cannabis like a pro!

1.  6″ Silent Inline Duct Fan, 26W

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Review Score -5

Price History

The 6″ Silent Inline Duct Fan is one fan you must admire for its ability to cut down power costs. This German-made fan will give you a shocking air movement of up to 188CFM with only 26Watts of your power. The consumption of this TerraBoom product is 30% lower than any other fan of the same size!

The propeller design is borrowed from the latest jet engine, which can move air at amazing speeds. The dual ball bearings and the motor have been rated over time to give up to 72000 hours of service in your growing room.

In addition, the materials used to make this amazing fan feature IP X4 protection ratings that will resist humidity, water splashes and even corrosion. To use, just plug the pre-wired power cord for up to 9ft in length and see the air circulation change forever in your growing room.

  • Very energy efficient
  • Durable material construction that will last long
  • Pocket-friendly
  • Not the best for large spaces
  • It  has no power switch or button
  • Can be quite hectic to mount on the wall

2.  VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan

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Review Score -5

Price History

When you want a powerful fan that will work satisfy your airflow needs, think of the VIVOSUN 4 Inch Fan. This fan attains up to 2930RPM to give you airflow of 195 CFM efficiently to the targeted area resulting in optimum ventilation in the growing area.

The design of the VIVOSUN is one that will shock you- compact, lightweight and will fit just into any space. The deflector concentrates mainly on-air stream, increasing the airflow and cutting down the noise from the fan. The 4-inch duct encloses a centrifugal impeller that is very strong in moving the air.

The motor of this air mover is long-lasting and extra-durable, featuring one of the most energy-efficient machines. Equipped with flanges on both ends, the fan is easy and simple to hook up. A wire cord of 5.9 feet makes the setup hassle-free.

  • Strong motor to give maximum and efficient airflow.
  • Low noise emission
  • Easy to set up
  • Has no speed control option
  • The plastic build may need careful handling not to shatter
  • May need rubber pad to prevent vibrations

3.  AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller

Total Reviews -0
Review Score -5

Price History

Modern-day grow rooms experience has further been revolutionized by the modern digital AC Infinity CLOUDLINE T6. With an intelligent controller, the fan allows you to select the humidity and temperature you so desire for your growing room in by having a controller for the fan speed.

The intelligent controller makes this fan a cliché on its own. The fan would monitor the temperature on its own by adjusting accordingly. Additionally, you could customise when to turn on or off, have the alarm set for various settings. For accurate operation, a detachable water-resistant thermal probe is included.

Energy efficiency and noise levels form the Cloudline T6 has seen the incorporation of the PWM control of the DC motors that are very efficient. With an IP44 rating, this fan resists liquids and dust making it very effective even in extremely harsh conditions. To maintain the fan, the motor box can be detached from the frame easily for cleaning and regular maintenance.

  • Intelligent design for accurate and precise airflow regulation
  • Power-efficient
  • Easy to maintain
  • Quite pricey
  • The controller may malfunction with time
  • The alarm can be quite noisy

4.  iPower GLFANXBOOSTER4 4 Inch Booster Inline Duct Vent Blower Exhaust

The iPower GLFANXBOOSTER4 is here to cut down the grow rooms cost of ventilation without complicating the technology. With a diameter of 4 inches and wattage of 12W, the fan can attain a speed of 2930RPM and an awesome airflow of 100CFM.

The superior blades are metallic are balanced to make the fan even more efficient and durable. A motor comes permanently lubricated, and it’s left open to ensure that it doesn’t overheat. The iPower GLFANXBOOSTER4, in addition, comes with 1 one year warranty.

Portability and installation of this machine is quite easy as its lightweight and relatively small. The grounded power cord that measures 5.5 inches further allows you to place the fan just anywhere in the growing room. To cap all the positivity with this fan, the noise levels are very low.

  • Easy to install and operate
  • Strong metallic blades that are durable
  • Energy consumption friendly
  • Cannot operate in temperatures above 130°
  • The case free nature of the fan will not let it operate in high humid environments

5.  Comfort Zone CZ6C 6-Inch 2-Speed Clip-On Fans

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Review Score -0

Price History

Comfort Zone CZ6C is the ultimate choice if you want portability and trusted brands. These fans have been around for the last 10 years and are among the most widely used brands across North America and Canada. With a width of 6-3/8 inches and a fan diameter of 6 inches, these mini giants will attain CFM highs of 55, quite high for such small fans.

These fans feature a 2-speed control option and can easily be adjusted to face any direction in your growing room. For convenience in mounting, the fans have a clamp strong enough to hold just onto anything.

Comfort Zone CZ6C fans have a built-in carry handle that makes moving them around very easy. ABS plastic that is used to make the fan is durable and environment-friendly. In addition, the fans will save you a lot when it comes to power consumption.

  • Convenient and highly portable
  • Energy efficient
  • Strong and durable ABS plastic build
  • Only efficient in small spaces
  • Does not oscillate
  • The cord is quite short

6.     Yield Lab 4 Inch 190 CFM Air Duct Fan Vent System

Total Reviews -0
Review Score -5

Price History

The Yield Lab 4 Inch 190 CFM Air Duct Fan Vent System is one ventilation system you need to buy next if you are looking for a high-performance fan. This Yield Lab product rotates at a speed of 3100RPM, reaching 190CFM, ensuring that air circulation in the growing room is as per your expectation.

This equipment allows you to have varying speeds with its inbuilt speed controller. The varying speed allows the fan to work from small grow rooms to large ones without having to change the fan. In addition, the electrical parts of this machine are durable and are maintenance-free.

To make the setup easy, the Yield Lab Air Duct Fan comes with a pre-drilled bracket that is versatile enough to allow the mounting of the fan at any angle. A sumptuous leather sheath that comes with the fan protects the housing of the fan and works to reduce the noise levels.

  • Amazing air flowability
  • Easy to mount and set up
  • Quality electrical parts that are maintenance-free
  • Consumes quite a lot of power
  • Pricey
  • A bit heavy to move around

7.     Formline Supply Quiet 6 inch Inline Duct Fan

Total Reviews -0
Review Score -5

Price History

Formline 6 inch Duct fun is a recommended fan for those of us with big grow rooms. This inline duct has the ability to attain air flow of 390CFM and attain a speed of up to 2550RPM. With this device, you will be able to dictate the environment in your grow room.

Formline has designed this fan to answer all the needs of modern grow houses. The Formline Supply Quiet 6 has minimum noise output, low power consumption ad is CE listed for its efficiency. Additionally, it can be used in both small and big grow rooms.

The 6-inch monster has a speed controller that varies with the needs of the grow rooms. The fan is easy to assemble, and set up as the plastic cowlings on both ends are quite easy to remove and put back.

  • The perfect solution for large grow rooms
  • Adjustable speed options
  • East to set up
  • Quite heavy to carry lift
  • Pricey
  • Doe not come with a carbon filter

8.  Hon&Guan 8 Inch Inline Duct Fan Exhaust Fan

If you’re worried about getting your fan wet while in the grow room with water, then the Hon&Guan 8 Inch Inline Duct Fan is your answer. This machine is built with a high-quality plastic material that is not only waterproof but also environmental friendly.

This fan features a powerful airflow of up to 495CFM and can work on a range of temperatures ranging from -4°F-140°F. With long life bearing motor that comes with a thermal overload protection, the machine will give you a long life of up t 50,000 hours of service.

  • Made of waterproof plastic that is environmental friendly
  • High-quality ball bearings that last a lifetime
  • Can remove other air pollutants and bacteria
  • Not ideal for large rooms
  • Pricey
  • Has no speed control selector

9.  iPower 6 Inch 240 CFM Booster Fan Inline Duct Vent Blower

At times all you want is a simple modification of your growing room, and that is what the iPower 6 Inch Fan Inline Duct Vent Blower will do. The inline duct is easy to set up, small enough not to affect the grow rooms design and solve issues to do with airflow without having to redo the existing inline ducts.

This fan, at 6 inches, has a speed of 2950RPM and will attain airflow of 240CFM, consuming a mere 37 Watts! Additionally, the fan is light, very portable and will fit just anywhere in the grow room as it comes with a long grounded cord measuring 5.5 feet.

Technically, the fan has strong balanced blades that will last long. The permanently oiled bearings have minimum noise output and need no maintenance. The manufacturer gives a 12-month warranty for this fan that is quite energy efficient.

  • Easy to set up and use
  • The metal blades are balanced that helps boost air supply & venting
  • Very energy efficient
  • Not ideal for large ducts
  • Quite noisy
  • Comes with only 2 hose clamps

10. Growneer 4 Inch 195 CFM Inline Duct Fan

Growneer 4 Inch 195 CFM Inline Duct Fan may not be a household name, but their optimal performance deserve a mention in the best fans for grow rooms. The fan features long-lasting plastic blades that are easily detachable for cleaning. The versatility of the fan makes it ideal for use in all types of grow rooms.

With a voltage of 110V, the fan has a speed of 2500RPM and airflow of 195CFM. Additionally, the fan consumes 32W of power only, which is quite efficient for the amount of air it can move in your grow room. With the advanced design used, be assured that the fan is able to regulate air in the grow rooms rapidly.

The compact design construction takes up minimum space in the grow room and will fit perfectly well in most indoor spaces. The plastic construction is very light for installation and will last long. The duct ends are removable, which makes maintenance and cleaning easier.

  • Optimum performance design that consumes less power
  • Durable plastic construction
  • Easy to install, clean and maintain
  • Quite a task to assemble
  • No speed controller
  • May turn noisy with time

Choosing the Best Fans For Grow Rooms: The Ultimate Buying Guide

The market is full of different fans for grow rooms, each with distinct features and performance strength. That’s why it is important to equip yourself off with the right information before you go shopping for a fan. Thus, you will have to sift through various online reviews to find the right grow fan for you. To make your search a little easier, we have put together this buying guide to help you in your quest. Here are a few things you need to ponder:

What’s The Size of Your Grow Room?

The number one factor to look into is the size of the grow room. This is to ensure that the fan has the ability to ensure optimal air circulation in the room. If that’s not attained, then you may not get the results you desire. To know how big your room is, multiply the length by the width by the height. Usually, the height is assumed to be approximately 1.25 meters. The answer you get will tell you the volume of air you need to remove from the room. For a small room, just about any fan will do the job. However, if the room is too big, then you may need a high capacity fan or several of them.

How Much Heat Do Your Lights Emit?

The lights in your room do not just emit light. In fact, before lighting up, it has to produce some heat. However, different electric lights produce varying levels of heat, which must be removed from the room by a fan. So, determine the kind of lights you have in your room. Then buy a fan with the ability to remove the heat being produced in the room. For instance, HID lights tend to heat up the room faster than fluorescent ones. That’s why you need a zealous fan that can remove the heat in no time.

What’s The Diameter of the Fan?

Just like any other product, fans exist in different sizes. In this case, size is determined by the diameter of the fan. So, the diameter is an important factor when it comes to choosing the best fans to grow rooms.  You will have to choose anything between 4 inches and 16 inches in diameter. However, a key consideration before buying a fan is the indoor set-up. In most cases, a 6-inch fan is large enough to fit in any grow room. If it doesn’t work, then buy a converter and not a new fan.

What Noise Levels Can You Tolerate?

Fans, no matter where they are used, often produce noise. So, there is no such thing as a quiet fan. However, you will be able to find a fan that’s quiet for your liking. The problem with quiet fans to grow rooms is that they are less powerful. If performance is the most important consideration for you, then the noise levels shouldn’t matter that much. Before you go out shopping for fans for your grow room, be ready to compromise on some things while striking a balance.

What Materials Is The Fan Made Of?

The best way to know if a fan is going to last long is to look at the material used to make it. While some are made of durable metallic parts, others are nothing but plastic. Of course, the less durable a fan is, the less expensive it is. If you are uncompromising on quality, then be ready to pay more. The best fans for grow rooms are those which have UL-listed components. With that, you can be sure that the components of the fan are certified to be durable and effective. Why should replace a fan after a short time when you can have a durable one from the get-go?

How much are you willing to spend?

When all is said and done, the price is what will determine whether you walk away from the shop with a fan or not. So, have your budget at the back of your mind. Sift through the stores and compare the prices of different fans for grow rooms. If you find a quality fan within your price range, why don’t you go for it?


You see? Finding the best fans for grow rooms doesn’t have to be that difficult. Provided you understand the size of your grow room, the amount of heat that your lights emit, the diameter of the fan, as well as your budget, there’s no reason you shouldn’t get a great fit. We hope that our choices will inspire you to become a pro in growing weed and other herbs.