VEVOR Inline Duct Fan, 4-Inch 205 CFM with Temperature Humidity Controller, Quiet EC-Motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics
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Availability:
In Stock.
Arrives
Jul 20 – Jul 22
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Size: 4 Inch
Features
- Universal Applications: Take a deep breath and relax. Our inline duct fan is specially designed as an exhaust for heat, humidity, and smoke, improving airflow in air planting tents, hydroponic planting rooms, electronic equipment rooms, kitchens, basements, etc. Get ready to go with the flow.
- Blow Your Worries Away: Our inline fan provides a sufficient airflow of 205 cfm, enough to handle wide areas of ventilation and dehumidification, maintaining clean and fresh air circulation in dry environments all the time. Take control of any environment confidentially.
- Power in Silence: Are you tired of loud, obnoxious ducts? Well, get ready to work in silence! Our inline exhaust fan is equipped with a high-quality EC motor that ensures strong power at a low noise of 28 dB, which will not disturb your work and life. At the same time, the motor saves 30% on energy consumption, extending its service life.
- Take It Easy: You already have a busy life. Why make it even more complicated? Your new fan not only performs excellently but also values your time! VEVOR's inline air duct fan adopts an intelligent variable speed controller that automatically adjusts the optimal air speed according to the temperature and humidity, eliminating the need for constant attention and freeing your hands for convenient use.
- Everything You Need: To save time and costs, we provide a 4-inch inline fan with hang-up slings, and non-vibration rubber mats and straps, allowing you to effortlessly complete installation. Additionally, you are not restricted in how you install the high-quality duct fan. Choose between hanging it or mounting it on the wall.
Product Dimensions: 12"L x 10"W x 9"H
Brand: VEVOR
Power Connector Type: Standard Power Cord
Voltage: 120 Volts (AC)
Wattage: 25
Cooling Method: Air
Compatible Devices: Grow Tent
Noise Level: 28 Decibels
Material: pp
Maximum Rotational Speed: 2900 RPM
Power Connector Type: Standard Power Cord
Voltage: 120 Volts (AC)
Wattage: 25
Cooling Method: Air
Compatible Devices: Grow Tent
Noise Level: 28 Decibels
Maximum Rotational Speed: 2900 RPM
Air Flow Capacity: 205 Cubic Feet Per Minute
Item Dimensions L x W x H: 12"L x 10"W x 9"H
Material Type: pp
Brand Name: VEVOR
UPC: 840281562596
Manufacturer: VEVOR
Number of Items: 1
Model: 4-Inch Inline Duct Fan
Part Number: EC Inline Duct Fan, 4-Inch
Item Weight: 6 Pounds
Item Type Name: Quiet EC-motor Ventilation Exhaust for Cooling Booster, Grow Tents, Hydroponics
Included Components: Temperature Humidity Controller
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 20 – Jul 22
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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 4 Inch
I purchased this 4" duct fan to be used as a ventilation fan in the attic of a second story room above a garage. I am going to be using the room as a gaming/man cave room and wanted a ventilation fan that I could adjust the speed of the fan and be unnoticeable when in the room. This fan works perfectly for the limited space I had to install it in and with the asthetically pleasing LCD controller, this fan met all criteria I had and then some. It gives accurate readings of the air temperature and humidity %. It also, of course, controls the fan speed with 10 program or manually selected speeds. On the lower speeds, the fan virtually cannot be heard which is exactly what I wanted. The higher speeds are noticably louder for obvious reasons but it really moves some air which is the whole purpose of this fan. It has been running continuously for a month now and works flawlessly. Overall, excellent choice for a variable speed duct fan with all the bells and whistles and the best part is, it's a fraction of the cost of similar type fans.
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Reviewed in the United States on May 2, 2023 Reviewed in the United States on May 2, 2023 by Jacob D.
Size: 4 Inch
I recently added the VEVOR Inline Duct Fan to my hydroponic setup, and I’m impressed with its performance. The 4-inch fan delivers an impressive 205 CFM, providing strong airflow that keeps my grow tent well-ventilated. It runs quietly, which is essential for my indoor environment, allowing me to focus on my plants without distractions. The integrated temperature and humidity controller is a nice feature, helping me maintain optimal conditions for my plants. It’s straightforward to set up, and having this control makes a big difference in ensuring my plants thrive. However, there are a couple of areas for improvement. While the fan is powerful, I found the controller’s sensitivity could be better calibrated; sometimes, it seems to react slowly to changes in temperature and humidity. Additionally, the fan could be a bit tricky to install in tight spaces due to its design. Overall, the VEVOR Inline Duct Fan is a solid choice for anyone looking to enhance ventilation in their grow tent or hydroponic system. Just be prepared to fine-tune the controller settings for the best results!
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Reviewed in the United States on September 25, 2024 by Dylan
Size: 6 Inch
I snagged this combo during the Prime Day deals to run on my 60w CO2 laser for smoke extraction. I had been using a 4" online fan with a step down adapter I 3d printed. It worked, but wasn't the. Greatest and certainly wasn't quiet. This usit with the control panel and sensor was a nice upgrade. Mind you, it's primarily plastic, time will tell how well it holds up, but for the price paid, it's a sound investment. I mounted it behind the laser on the cart I built for it, connected right up with the ducting (separate purchase, same brand) and ran without any problems. I was impressed with the airflow, but moreso the lack of noise. It's literally 30% quite or more than the old style in line fan I was using. I don't think it's worth what it normally runs when not on Prime Day or a lightning deal, but when it is at those prices, it's a solid purchase.
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Reviewed in the United States on September 10, 2023 by Luvin Eire
Size: 4 Inch
The sensors are garbage. I bought this for use in a greenhouse. After buying it, it sat around for a few months until I actually got everything I needed assembled and ready to be used. The fan worked for 3 weeks. It's very loud, but I don't live in a library, so that didn't bother me. It worked well for 3 weeks, until the Humidity sensor stopped working/reading which made the fan almost not useable. It will not turn on in any mode except just straight fan mode, which is achieved not by setting it, but by pulling the humidity connector out of the controller, which causes the fan to blow on whatever the setting was set to with the probe plugged in. I had to buy a cheap inline fan with a basic controller and now I use my humidifier as a way to automate my grow as vevor doesn't offer any replacement probes or do they replace anything for anyone, apparently, as I called and was told I was beat and then everyone else's reviews verify that they have ZERO intentions for customer service or satisfaction. It's a shame, as it did seem like a great fan... but they have to actually work and last longer than 3 weeks for an $80 greenhouse fan.
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Reviewed in the United States on April 22, 2025 by Kenneth J.
Size: 8 Inch
This a great fan, it has many uses, high quality control I really like that saves the last setting when power is turned off… I’ve installed many in duct booster fans over the years in my HVAC business, this one is far advanced over the standard type, Always look for EC motors, there Very Quiet, Efficient and Variable Speed with Superior Controls definitely a game changer!
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Reviewed in the United States on May 15, 2026 by Dave Iba
Size: 8 Inch
This fan blew me away. I was making a cooling system for my laptop and wanted to run a 4 inch hose trgough the desk to the underside of my laptop. I purchased a random4 inch fan that was not very good so I decided to go larger. I happened to see this fan on sale and thought it may be too good to be true. Well it is not, i was going to go 6 inches but the 8 inch was less than other 6 inch fans so I bought one. The first time I turned this fan on I actually thought my laptop would lift off the desk. I coul only laugh at the amout of overkill for my needs I got. But hey overkill can be good. The little control unit that comes with it is a little chunky when trying to navigate but i like the fact its lit up and you can read it in a dark room. Tge speeds range from 1 to 10 and each one is a clear and progressively higher step in fan speed. I put a 6 inch reducer on my since I had 6 inch ducts alreadynand it was only going two feet from being mounted on my the underside of my desk through the desk to a cistom duct holder and stand for my laptop. I use a custom filter to try and minimize the dust being pumped into the laptop vents. It works really well and i never have to turn it up past 4 and it moves a lot of air. This fan is worth every pennyand it moves so much air that I buy a second one for my den to circulate the ac cool air since i only have one vent in a very large room.. Short answer is this fan is powerful and moves a ton of air!!! You will not regret your purchase and sometimes it half the price of other less powerful fans. I paid 25 percent more than what i paid for my 4 inch fan that wont even blow a piece of paper. The fan can get louder at around the 7-10 range but i was surprised at the quietness in relation to the amout of air being passed through. Over good fan!
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Reviewed in the United States on August 15, 2024 by Eric C.
Size: 6 Inch
Simply put, this inline duct fan seems to be as good as any of the competing brands, and makes one wonder why the others cost so much more. The only issue I had was a loud high-pitched whine that came from the controller box even when the fan was completely off. (Since the controller monitors temperature and humidity, it's never really "off.") Then I got around to plugging in the temperature sensor cable (which not all competitors provide or support), and the whine disappeared completely. I guess some circuitry was switching on and off to check temperature, and with no sensor it made an audible switching sound. In any case, this is a flexible controller and a fully functional fan, and I can't find any fault with it. And it has an anti-back-flow feature so outside air doesn't blow back into the duct when the fan is off. Mine is installed on the high-pressure side of the shop, and there's almost always prevailing wind against that side of the building, but no indication of any draft back through the fan. This can be very important, not only to prevent heat loss, but also to prevent possibly toxic dust and particulates that accumulate in the duct from being blown back inside. I will definitely pay attention to other products from Vevor.
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Reviewed in the United States on September 7, 2024 by Amazon Customer
Size: 6 Inch
Fan great. But the humidistat/controller is not accurate. Checked with a known good humidity sensor and this one is off! Fan runs all the time. If the humidistat feature is turned OFF and the thermostat is left ON, the fan cycles ON and OFF as expected to maintain the attic's preset temperature.
Reviewed in the United States on October 7, 2025 by Herb