VIVOSUN 4 Inch 203 CFM Inline Fan with Speed Controller and Leather Sheath, 4 Inch Carbon Filter and 8 Feet of Ducting, Air Filtration Combo for Grow Tent Ventilation

This was by far much better than I expected. I expected a home product and this is commercial grade and works that way too. The fact that it has a fan speed and can turn it all the way down seeing I don't need that much power lol, makes it perfect. I have the power when and if I every need it but I don't have to worry about running it 24/7 because it was obviously made to do this. Thank you!!!

I ordered this specifically because it was a VIVOSUN and all the products i bought from them previously all did their job as needed. Given the space im working with it was a slight challenge to get it all strapped and set up but i was able to get it all hooked up within an hour or two. As soon as i plugged it in it started up and was super quiet and did everything perfectly. Am happy with my purchase.

This exhaust system is amazing . I cant Tell yet if the carbon filter works but I will Keep you posted .Burned out in the first 30 days but the customer service was absolutely amazing I had A new one the very next day . I will Order more product from you for sure .

I use it as an air scrubber in a grow room not a exhaust fan. Simply set the filter down on its end and set the motor on top of it, plugged it in and turned it on and it works. Cleaner air. 12x18 room.Update: I now have it exhausting air straight outside rather than a circulating scrubber. I really does make a big difference. It makes a huge difference as my ladies (cannabis legal state) are getting quite fragrant. Just a few weeks from harvest. Great investment.

I purchased this for litter box oder control. It works as intended in a laundry room that has a multi cat litter box. Oders do not leave the room to infiltrate the rest of the house. The fan is not excessively loud, but can be heard even after installing the muffler. If you want zero noise then you need to move on to another choice. We have used this system for about a month now 24/7 and the device has not had any failures. If you need a way to control orders and an external exhaust fan is not an option, then this is a great way to go, provided you can deal with 20-30db of background noise.

I bought the 6 inch fan with a 5x5 foot grow tent due to being recommended by . This thing is an over-kill for my use, on the lowest setting; it literally sucks in the walls of the tent, this is with with three 6 inch holes opened for air intake - it is very powerful. It is also somewhat loud, with the room door closed, you can hear it humming away.I give this a five star due to it being very well made, but if you are using this for cooling lights in a grow tent, you may only need the 4 inch version.

I have a 4x2 veg tent and I was surprised at the size of the setup. I’m not running it from my port holes in my tent, I just have it standing upright in the corner (I would install it to be hanging at the top but my tent is small than prescribed from this ventilation setup, so purifying will be no hassle)

I really like this set-up. The fan wasn't super loud and the carbon filter does its job. I, like others, had a problem with the fan rattling after only 2 months of use on low. I contacted the seller and they replaced not only the fan, but sent me a new filter and everything else in the kit! Excellent, friendly, and fast customer service!

I'm real happy with Vivosun products. I have run it intermittently for about 4 months now. By intermittently, I would have it run for 30 min, then off for 30 at night. It was on all day. The controller let me find a point that kept air flowing, but didn't suck in the sides of my grow tent too much. That is a Vivosun 4' x 4' x 6'- 8" tent. I also had no odor problems. Works as advertised and I would buy it again, but I hope to only need filters.

didn't get anything I was supposed to