TL;Dr: Here is a list of some of the best grow tent fans found on the market and what makes them the best:
- Top-rated fan for grow tents: iPower 6 Inch 442 CFM Inline Fan
- Editor’s pick: AC Infinity CLOUDLINE T6
- Best value for money fan: VIVOSUN 6 Inch Inline Duct Fan
- Best quality fan for grow tent: Vortex S Line S-600 Fan
- Best fan for beginners: Hydrofarm ACDF6 Active Air Inline Duct Fan
A ventilation system is essential for your crops when you are growing them in grow tents. Since you are growing them indoors, and in a closed environment you need a fan to keep the carbon dioxide and oxygen in circulation.
Unlike residential or commercial buildings, you do not need an air conditioner. A fan would do the job but do not go ahead and buy the cheapest option out there. You need a few features to get the best harvest.
In this article, I will review the best fan for grow tents and reason out exactly what makes them the ideal choice.
Before we get started, know that CFM stands for Cubic Feet per Minute. (airflow)
Quick Comparison Chart: Best Fan for Grow Tents
| Product | Best Features |
| iPower 6 Inch 442 CFM Inline Fan | Excellent airflow with decent noise. At this cost, you get ducting and filter. |
| AC Infinity CLOUDLINE T6 | A smart, lightweight fan which is the quietest on the list. Also, the most technologically advanced. |
| VIVOSUN 6 Inch Inline Duct Fan | A heavy fan with good dispersion abilities and an excellent filter system. |
| Vortex S Line S-600 Fan | 10-year warranty with ACMA certification and a high impact resistant body. |
| Hydrofarm ACDF6 Active Air Inline Duct Fan | UL certified components with thermally protected motor and speed control. |
In-depth Review: Best Grow Tent Fans
1. Top-rated fan: iPower 6 Inch 442 CFM Inline Fan
Featured Highlights:
- Duct size: 6 inches
- Airflow: 442 CFM
- Noise: 65 decibels
- Weight: 32.9 lbs
- Odor repellent
Who is this for?
This is a fan for those who give customer reviews the first priority. But, this is still a great fan with filter and ducting for a reasonable price.
| Pros | Cons |
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Best reasons to buy
Reason 1: Highest airflow with low noise
This fan has an airflow of 442 at just 65 decibels which is the highest airflow any fan gives compared to the ones on the list.
Reason 2: Great temperature endurance
The flame-retardant coating and corrosion-resistant wire helix make this fan endure temperatures ranging from 0 ~ 185°F. (-18 °C ~ 85 °C).
Reason 3: Trusted product
This product is time tested by people all around the world (800+ reviews) and the general review has been rather good. You can trust this fan for quality if you purchase it.
2. Editor’s pick: AC Infinity CLOUDLINE T6
Featured Highlights:
- Duct size: 6 inches
- Airflow: 351 CFM
- Noise: 32 decibels
- Weight: 8.6 lbs
- Odor repellent
Who is this for?
This is a fan for those who like everything smart and want to be stress-free by letting the fan control the environment that is the best for your crops.
| Pros | Cons |
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Best reasons to buy
Reason 1: Intelligent programming
With this fan, you get a programmable controller with precise temperature and humidity sensors located on the 12-foot corded probe. It is also self-adjusting.
Reason 2: Pulse width modular motor
Each system utilizes a DC or EC motor that is controlled using PWM, which is quieter and more energy-efficient than AC fans.
Reason 3: Mixed flow design
Because of the design the fans maintain peak performance in high static pressure environments. Moreover, you get ingress-protection against dust and liquids.
3. Best value for money fan: VIVOSUN 6 Inch Inline Duct Fan
Featured Highlights:
- Duct size: 6 inches
- Airflow: 390 CFM
- Noise: 37 decibels
- Weight: 23.5 lbs
- Odor repellent
Who is this for?
This is a fan for those who want the maximum value of the money they spend and are not ready to compromise on the quality but it is okay if you do not get the most advanced fan.
| Pros | Cons |
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Best reasons to buy
Reason 1: 2 years of life
The reversible flange and base help you extend the life of your filter whereas other designs have a third of the shelf life.
Reason 2: In-line balanced blade
This design of the blade helps keep low noise levels and also save electricity. Besides, you get a good boost to the airflow.
Reason 3: Use the filter anywhere
Grow tents, cupboards, and cabinets. You can use them anywhere. You just need to have an opening to disperse the filtered air.
4. Best quality fan for grow tent: Vortex S Line S-600 Fan
Featured Highlights:
- Duct size: 6 inches
- Airflow: 347 CFM
- Noise: 52 decibels
- Weight: 6.8 lbs
- Odor repellent
Who is this for?
This is for the people looking for a high-quality product with a great lifespan and a body that can take a few falls or bumps here and there.
| Pros | Cons |
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Best reasons to buy
Reason 1: Overload protection
There is an externally mounted 120vac 60hz motor with automatic reset thermal reset overload protection. Lubricated sealed bearings, double insulated wall, rubber gasket for duct connection are added bonuses.
Reason 2: Polycarbonate casing
This can is made for heavy-duty applications since it is a high impact, dust, and corrosion-resistant. Also, the fan has double-wall insulation.
Reason 3: 10-year warranty
Fan airflow performance is based on tests conducted in accordance with AMCA Standard 211 and is licensed to bear the AMCA Certified label. The ten-year warranty is an insane reason to purchase this product.
5. Best fan for beginners: Hydrofarm ACDF6 Active Air Inline Duct Fan
Featured Highlights:
- Duct size: 6 inches
- Airflow: 400 CFM
- Noise: 71 decibels
- Weight: 10.6 lbs
Who is this for?
This is a fan for the gardeners who are just starting off and do not want to invest a lot on fancy equipment and features.
| Pros | Cons |
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Best reasons to buy
Reason 1: UL recognized components
UL certification is a trademark for those products that want to ensure its users that the parts they use are of the highest safety standards.
Reason 2: Thermally protected motor
With such raw machines with no heat dispersing mechanism, you need a highly insulated motor which you do get with this fan.
Reason 3: Air Fan Speed Adjuster
Designed especially for centrifugal fans, this unit correctly and precisely adjusts the fan speed without causing the motor to hum.
Summing Up: Which is the best fan for your grow tent?
The best fan for your grow tent depends entirely on your requirement and hence I have listed out who exactly are these for.
The fans on this list are the cream of the ones you can find on the market, so you need not worry about quality. Just make sure to read the “who is it for?” section well before investing.
Also, do check out all the other grow equipment I have reviewed.