VEVOR Inline Duct Fan, 8-Inch 807 CFM with Temperature Humidity Controller, Quiet EC-Motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

Just installed vevor 6" duct fan . 1000 x improvement in flow over my hvac . Super quiet at the fan install point on full speed . A little louder at the vent but not super annoying . The controller is simple setup and easy to use . Will update in a month or sooner if there's any issues

I've always struggled with adequate sleep, often waking up sweating. My Oura ring says I wake up 5-10 times a night. I read about Elon/Zuck touting the 8Sleep solution but no way I can afford $3K to cool down my bed. Then saw the Bedjet and it was still too much to try on a whim. So armed with this duct fan and a length of duct hose, I rigged up a cheap setup to test it out. First, I'm so glad I purchased this model specifically. 1) Speed 1 (lowest speed) is quiet enough to sleep with (almost indiscernible with my ears) and yet provides enough air flow even through 16' of corrugated hose to cool a king sized bed. Many other duct fans I considered only have two speeds which I suspect are both too loud and too much airflow. I will say that 2 is a bit louder and likely tolerable while sleeping, but any of the higher speeds and things get noisy. If you're a fan of white noise, it might work. 2) The temperature and humidity sensor and triggers let me be creative to try and trigger the fan only when temps rise above a set comfort level. Leaving the fan on all night seems to be a bit too cool to fall asleep to. I've only tried it two nights now, but my Oura ring is telling me I'm not waking up in the middle of the night and I'm waking much more rested than I can remember. I initially tried the duct down by my feet but it chills your feet too much so slept with it about 1/3 up the bed mostly chilling the torso. The way your sheets/blanket are situated will really control where air flows. Keep the sheets taught with an exit by your neck and you've got wind flowing along your body (too cold). Create a bubble and it just keeps the area cool without a lot of actual wind exiting the sheets. In the future I want to try and couple of modifications including capping the end of the hose and punching holes along the length and having it lay across the entire length of the bed, and more experiments using the temp/humidity sensor to create something that responds dynamically versus on all night. Highly recommended as a sub-$80 bed jet alternative or to even see if you like it.

I have only been using this fan (8 inch w/ controller) for a few days so this is an initial impression. For those interested, read on later for tests that I conducted. The fan comes with a controller and a temperature and relative humidity sensor. The fan alone WILL run without any of these hooked up, but it will be at full speed. The amazing part is the controller that will allow the fan to be run at ten different speed settings. It appears to draw a lot less current than the fan I replaced, although that was 10 years old or so, and it runs quieter even though it moves the air 12% faster than the old one. It also can be run with only the controller attached but not the T/RH sensor, so unless you need to have it turned on/off at specific T or RH settings, it does not need to be hooked up. I can't imagine buying the model without the controller, which is nearly the same price. Following is the technical information. Speed setting 10 - full: 67 watts, 2800 ft/min (all readings are at no load/resistance right at the fan outlet. Ducting friction will reduce the air flow. For my situation with 3-90 degree elbows and 50 feet of flexible spiral ducting, the outlet is 1600 f/m at the 10 setting); 9: 57 w, 2500 f/m (89% of full speed); 8: 47 w, 2300 f/m, 82%; 7: 41 w, 2200 f/m, 79%; 6: 35 w, 2000 f/m, 71%; 5: 29 w, 1900 f/m, 68%; 4: 24 w, 1800 f/m, 64%; 3: 19 w, 1600 f/m, 57%; 2: 12 w, 1350 f/m, 48%; 1: 6 w, 1000 f/m, 36%. For comparison, another fan I have with a variable speed L to H controller, the lowest speed is 73% of the maximum. If you want a wider range of speeds available, particularly at the slower end, this fan is a fantastic option at an unbelievably low price. I have already ordered several others. Even if it fails in a year or two of nearly continuous use, it is still a great value.

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.

Damn! This thing is a champ, I put it into my longest run of ac duct from the ac in the basement to the 2nd story room. And whoever installed the ac system in this house was a few braincells shy of your average fella, no tape on any of the joints ect. but yah taped up all my joints and fitted this thing in for the second story room and it is super nice moves air excellent, easy cleaning! The blower portion of the housing separates with 2 clamps, use the Philips head driver and pop the center out, clean, reinstall. Cannot speak on longevity yet but seems robust. I'm a Mechanical Design Engineer for industrial equipment , so not just Billy bob in his garage😂 Will most definitely update review if anything craps out, but as of now this thing saved us from sleeping in the living room! Settings are easy to figure out if you refer to the manual, also some good videos on them. It easily tripled or even quadrupled the output of that register! Measuring your ductwork is crucial make sure you get the right size! I got the 6 inch temperature controlled model. Temp controller module is essential if you plan on using it for ac or ventilation. I'll add a photo once I tidy up the wires, don't wanna show off sloppy work😂 but had to stop and give this thing some props have 2 Vevor products and both have impressed me for both price and quality. (P.S. other Vevor product I own is the 4500psi high pressure pump for my pcp air gun, works great 👍)

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!

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!

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.

Fino ad ora si è comportato bene, potente come descritto (807 cfm sono circa 22.850 litri/minuto) quindi assicura un ricambio d'aria anche in ambienti grandi, comodo lo schermo per la regolazione che si può installare ad una certa distanza dal motore ad esempio più in basso, alla massima velocità è rumoroso (è normale per un ventilatore in linea/a tubo di dimensioni ridotte) ma a velocità inferiori inizia ad essere silenzioso.

Très bien pour le prix Qualité correcte

I bought this fan to replace an age old extractor fan in my attic space, removing moisture from the bathroom. The extraction power feels twice to three times as powerful which is exactly what I needed. Installation is easy I cut the plug off and put it into an isolator linked to the pull string switch. The controller is nifty, easy to use. The only feature I can't see in the controller is the option to have a trickle speed at certain temps, it's either on or off at the desired speed. For what I need though it's ideal. I just need to get a roof tile vent now to compete the job.

I received the inline fan very quickly, thanks for that. However when testing the fan I soon found out that the so called controller actually does not do well what it should do, it is advertised that it can be used well in a grow tent but unfortunately this is not going to work as it should. This fan controller that comes with it is actually nothing more than a temperature gauge with a termostat. There is nothing really adjustable in the thing just regulates on or off at a specified value. It should go to a low setting when the temperature is right in the grow room but it doesn't, it goes off. You don't want this in a grow room, you should always have negative pressure/fresh air in connection with odors etc. This fan looks nice with a nice controller but for growing purposes it is worthless, do not be fooled by the nice movies on youtube about this fan which is also sold under many other brand names but are all identical! I find it a pity because the service speed of this shop is fantastic but I feel cheated by the product. The fan is not broken, it just does not work as promised. This one is going back. I will buy a more expensive fan with a real controller.

Ottimo estrattore, acquistato per problemi di muffa nell’abitazione, presenta diversi livelli di potenza di aspirazione, silenzioso con quelli più bassi più rumoroso ma con alta potenza di aspirazione con quelli più alti, il secondo livello basta per far circolare l’aria nell’abitazione, presenta anche programmi per l’accensione e spegnimento automatico in base ai livelli di umidità e calore o accensione manuale con comandi da muro e schermo retroilluminato con i dati in tempo reale dati dalla sonda. Consigliato.