Top 10 Best Inline Duct Fans Reviews For 2019

An inline duct fan is a vital appliance that helps with cooling, heating, improving ventilation and removing bad odors from a room. It can be installed in the bathroom, attic, grow tent, or even garden room.

Today I am going to introduce ten best inline duct fans worth checking out if you are shopping for one. Each of the following duct fans offers better performance and is more durable than the majority of the fans promoted out there.

Table of the Best Inline Duct Fans:

PictureTitle
TerraBloom 8
TerraBloom 8
VIVOSUN 6 Inch 390 CFM Inline Duct Fan with Variable Speed Controller HVAC Blower for Ventilation
AC Infinity CLOUDLINE T8, Quiet 8
iPower GLFANXINL6FILT6MD25C 6 Inch 442 CFM Inline Fan with 6
iPower GLFANXINLINEPRO6 6 Inch 390 CFM Inline Duct Temperature Humidity Variable Speed Controller, Quiet HVAC Ventilation Exhaust Blower Fan, 6
Can Fan GL56736746 736746 Fan, 6
VIVOHOME 8 Inch 735 CFM Black Round Exhaust Inline Duct Fan with Variable Speed Controller for Indoor Garden Ventilation
Formline Supply Quiet 6 inch Inline Duct Fan with Variable Speed Controller - 390 CFM Exhaust Blower Provides a Durable Low Noise Solution for Grow Tent Ventilation
AC Infinity CLOUDLINE T4, Quiet 4

10. Terra Bloom 8-Inch 735 CFM Inline Duct Fan


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The TerraBloom 8-inch inline fan is perfect for use in grow tent with carbon filters. This exhaust duct fan has a 205-Watt motor with speed up to 2450 RPM and capacity up to 735 CFM. In addition, it features an in-built speed controller that lets you reduce the speed from 100% to about 50% when the fan is at max output. This enables you to control airflow, noise level output and energy consumption. Plus, the fun is designed to fit into 8-inch ducts and comes complete with a 6 ft grounded cord, which is pre-wired already.

9. TerraBloom 8-Inch 710 CFM Inline Duct Fan


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Going by how the product is rated on Amazon(5 stars), the TerraBloom 8″ inline duct fan is arguably the best inline duct fun online. This 75-watt fan is quiet, energy saving, easy to install and durable. It features an EC motor with a capacity up to 710 CFM, 0-100% adjustable speed controller, airtight steel housing and a compact design. Plus, the product is covered by a 2 year warranty, so you do not have to worry about the cost of some repairs or maintenance steps in the first two years of usage.

8. Vivo Sun 390 CFM 6-Inch Inline Duct Fan


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Vivosun’s 6-inch inline duct fan provides perfect ventilation for small to medium size rooms. This 390 CMF fan is suitable for a wide variety of ventilation applications, including home, commercial and agricultural. Usage versatility is one of the reasons why it is so popular on Amazon that it is rated 4 stars out of 5 stars. Another reason buyers like this fan is low noise levels. Other special features of this fan include various speed adjustments, low-noise blades, strong plastic fan casing, detachable duct ends with locking tabs for instant removal and stress-free maintenance, and a cord that is long enough for a hassle-free setup.

7. AC Infinity Cloudline T8 740 CFM Inline Duct Fan


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Cooling a grow tent, eliminating the unpleasant odors and solving various ventilation problems during hot days has never been so easy with this inline duct fan. The Cloudline T8 inline duct fan from AS Afinity also warms grow tents during cold days.

This 8-inch fan comes handy with an intelligent temperature controller and humidity controller, which enable it to be that useful. Its other special features include a motor with massive airflow power up to 740 CFM, various fan speed settings, and timer & alarm system.But that is not all, the kit comes complete with a corded sensor probe, two duct clamps, and the necessary mounting tools, besides an AC power plug.

6. iPower 442 CFM 6-Inch Inline Duct Fan


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This 6-inch iPower inline duct fan, filter and ducting combo is what you need to create ultimate ventilation for your grow tent. It comes as a complete set with carbon filter and insulated aluminum ducting systems so you do not have to rely on your existing filter and ducting systems.

Other special features of the fan include an innovative motor with a capacity up to 442 CFM, 2 stainless steel clamps, flame-retardant coating not to mention non-corroding wire helix.

5. iPower 390 CFM 6-Inch Inline Duct Fan with Intelligent Thermostat


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This is another incredible mid-range inline duct fan from iPower. The Glfanx Inline PRO 6 duct fan silently ventilates, transfers heat/coldness, circulates fresh air, and exhausts bad odors. This ultra-quiet HVAC-like blower can be used for ordinary rooms or grow tents. It perfectly combines the functions of an indoor thermometer, humidity monitor, digital timer, and fan. Plus, the fan 6-inch fan comes with a 390 CFM capacity motor, intelligent thermostat, variable speed controller, and 33-feet cord.

4. Can-Fan GL56736746 Inline Duct Fan


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The GL56736746 Max Pro series is one of the best inline exhaust fan models for warm and cooling hydroponic gardens. This 6-inch duct fan stands on its own and can work as a standalone device or may be mounted in-line with your existing duct work to enhance air circulation in the garden.

It features a quiet motor with high-velocity airflow up to 420 CFM, conveniently long power cord, and series of fan blades that rotate efficiently. Other features include three speed settings(high, medium & low) for the right performance at any one time. This product comes with a five-year warranty, covering certain parts and repairs.

3. Vivohome 735 CFM 8-Inch Inline Duct Fan


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The Vivohome 8-inch inline duct fan is built specifically for indoor garden ventilation purposes. With a capacity up to 735 CFM, this can be said to be one of the most potent garden air circulation systems available to buyers today. And just like other great inline duct fans, it features a high power motor with efficient blades, variable speed controller for a hassle-free fan speed adjustment, and premium quality body construction for durability. Finally, this lightweight fan comes complete with a universal mounting bracket to ensure easy replacement.

2. Formline Supply 390 CFM 6-Inch Quiet Inline Duct Fan


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If you are looking for a quiet, long lasting and low-energy consuming inline duct fan, the Formline Supply 6-inch inline duct fan is another great choice. This is a popular low-noise duct fan with an air displacement capacity up to 390 CFM. It is designed to work quietly, consume minimum amount of power and last longer. This amazing exhaust and ventilation system features an efficient design, variable speed controller, and numerous uses. For instance, besides garden tents, it can be used for bathrooms, attics, and even commercial set for cooling purposes.

1. AC Infinity Cloudline T4 205CFM 4-Inch Inline Duct Fan


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The AC Infinity Cloudline T4 stands out with its special cylindrical design that is smaller at both ends and larger at the mid section where the motor is located. This 4-inch inline duct fan is one of the quietest fans for grow tents and hydroponic rooms you will ever come across.

It features a temperature controller, humidity controller, fan speed controller, as well as a timer & alarm system. Plus, the motor has an air flow capacity up to 205 CFM, which is sufficient for a small to medium size grow tent or hydroponics room.

Final Thoughts

Inline duct fans can be essential pieces of appliances when it comes to various space heating, cooling and ventilation applications. While some varieties are designed for specific types of spaces such as hydroponics rooms, garden tents, many fans are versatile enough to be used for any kind of room or space. It can be a bathroom, grow tent, an attic, etc.

As you can see from my list, Terra Bloom, Vivosun, AC Infinity, iPower, Can Fan, Vivo Home and Formline Supply are some of the best inline duct fans on the market. Their fans offer better performance and are more durable than the majority of the fans promoted out there. That said, if you are looking for a quality inline duct fan, look no further than these.

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