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 Inline Fan was Super Easy to Install.It included Straps for the Carbon Filter and A Nice New Pre-Filter that fit it !!!The Inline fan does make noise but but not a lot. Vivosun also makes a Noise Reducer You can add to Your Setup as well. Then It would be Even Less Noise. But as is, it's quite manageable !!!Great for Beginners and Anyone Growing.Vivosun has GREAT Customer Service & Warranty department.I have this Setup to exhaust myVivosun 2.5' × 2.5' Grow Tent anda Vivosun 4" inline for intake of Fresh Air w/Carbon filter to filter outside Air Coming into my Garden. I have the Included Carbon Filter as well on the exhaust. As well as another one @ the end where I vent outside... Can't Smell a thing..I added a C02 bag & Vivosun Fabric Pots Now My Garden is Thriving !!!Also Not a smell one coming from my Tent except in the room holding the tent when I open/close the main doors. Other than that No One CAN tell !!!Just my experience though but it All Works Great Together !!!5 STARS ALL DAY LONGCAN'T BEAT THE VALUE FOR THIS PRICEA BARGIN @ THIS $$$

Pros: Overall build quality was very satisfying. Fan housing is steel and is fairly heavy for it's size. Included duct was of good quality (expected less honestly - pleasantly disappointed😁👍)The filter is huge. I didn't expect that. In all fairness, I just knew to buy the 6", I never looked at the measurements.I smell nothing outside the tent and I use fish emulsion (this $#!t sinks).It also has a potentiometer for speed adjustment.Cons: I had to cut a piece of wood to bolt the fan to because, while it does come with a bracket and nuts and bolts, it doesn't come with a way to hang it inside the tent.Also, the filter is bulky and a little heavy to hold overhead and hang by yourself. YOU'RE GOING TO WANT A SECOND SET OF HANDS (Yeah, you can hang it yourself, but if you have an anxiety disorder as well, just save yourself the frustration😤🤬👍)Only other con is the noise level.If the door isn't shut to that room, the fan can be heard downstairs and around the corner.Other than that, 10 out of 10 for performance. Would buy again if I needed another.

A little loud, but it moves a lot of air. So definitely worth it. It is also adjustable. We've had our for two years and it is still going strong. One of our best purchases for our tent. Works really well and keeps our area smelling fresh.

I give it a 8/10 just the noise is a bit much other then that it's solid 👌

I used this fan for around 5 months. The first 3 months went decently well, the suction was great and noise level wasn’t too loud at the lowest setting. Then came month 4... the fan now barely works and makes the loudest noises I’ve ever hear from a fan like this. I’ve used other fans that can last up to two years with little to no problems. Just last night I heard the fan stop completely on it’s own and made a screeching noise like it was grinding. I checked the fan with no obstructions and tried to turn it off then back on, it’s barely working and EXTREMELY loud im scared it’s going to blow up or stop working when I’m not around for a few hours. Hopefully im able to get a replacement or a refund as I’m just hitting early flower and this is going to be a problem.

I purchased the 48”x48” VIVOSUN grow tent with 2 lights and this fan/filter. It works perfectly and installs into the tent perfectly. Feels very durable and it is not too big.

I got the 6 inch and Ive done maybe 5 grows to where the fan runs 24/7 for months at a time. The filter last about 2-3 runs. Using it in a 48x48x80 on the lowest setting and that’s enough to sink in the walls. It’s not the most quiet on the market but it’s not loud either. On full blast it gets a little loud. I would recommend the product because I’ve had it for a while and it works. 1 con though, the lip that connects the filter to the fan and the fan to the ductwork is sub-par.

I returned it as the electrical box on the fan was broken . It was also making a lot of clanking noises. The way they mount the electrical box on these fans is in a horrible location and I could see it easily getting broke there. I sent it back and ordered one that was an enclosed all-in-one fan and filter unit that was much cheaper but better quality. I gave it 3 stars only because the filter seemed nice.