We reviewed hundreds of indoor grow tent fans and grow room exhaust fans available on the market as of July 2019 and created a simple list to help you pick the best inline grow tent fan and ventilation system for your indoor cannabis grow. Each tent was evaluated across a variety of factors: cost, durability, reflectivity, frame-strength/weight capacity, ease-of-assembly and use, and much more. These tents are truly the best options out there.

Illustration for article titled Best Grow Tent Fan for Growing Indoors in 2020
Image: Best Grow Tent Fan for Growing Indoors

Have a question about a specific fan? Ask us in the comments!

The list below ranks the top grow tent fans on the market for the year of 2019 (the cheat sheet table is below with price ranges). Keep in mind, price can fluctuate depending on the manufacturer so we will try to update the prices as frequently as possible. Please refer to the product links in each of the sections to get the most up to date pricing information on Amazon.


Whatever your budget, grow space size or level of experience, we think you’ll find a grow tent ventilation system here that works for you. Pro tip: for best results pair one of these with one of our most recommended grow tents.

Things to consider before buying

Cannabis cultivation indoors is highly satisfying. But closely controlling the amount of light, temperature, humidity, is a challenge even for the largest indoor growers we work with! The good news is, you don’t need to struggle with managing conditions in a room, just purchase a recommended tent ventilation system that will control your environment. See below for a detailed evaluation of each grow tent fan we reviewed.



Editor’s Choice: AC Infinity CLOUDLINE T6 6” Inline Duct Fan

The new CLOUDLINE series contains a state-of-the-art EC-motor, and utilizes precise electronic pulses with smart programming to control fan speeds. This results in a 40% noise reduction over conventional AC duct fans relying on voltage suppression to lower fan speeds, which generates additional motor noise and heat.


Features a controller with active temperature monitoring that will automatically adjust fan speeds to respond to varying temperatures. Each system utilizes a DC or EC motor that is controlled using Pulse Width Modulation (PWM), which is quieter and more energy efficient than AC fans. Featuring a mixed flow design, the fans maintain peak performance in high static pressure environments. Ingress-protected against dust and liquids. The complete kit includes the inline fan unit, controller, user manual, and everything needed to mount the fan and power it through an outlet.

This is hands down the best grow tent fan we tested. While a bit more expensive than your other options, you definitely get what you pay for. You won’t be disappointed!


Runner Up: iPower 6 Inch Inline Fan w/ Carbon Filter, Ducting & Speed Controller

The iPower 6 Inch Grow Tent Fan is made with quality UL components for quiet operation. Composite fan blades and center hub which reduces noise and vibration.


Comes bundled with a 6 Inch 1050+ IAV Australia Charcoal Filter: one of the world’s most absorbent carbon filters available. Also includes 25 ft of uninsulated aluminum ducting + 2 stainless clamps.

Control switch for 3 settings w/ variable speed: OFF, HIGH, MED, LOW. Free pre-filter included. Recommended to replace the pre-filter every 6 months to protect your filter.


We like that the this combo from iPower includes everything you need. Quality doesn’t quite measure up to the AC Infinity fan, but for the price and simplicity of an all-in-one bundle, this is definitely a good option.


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