VIVOSUN 4 Inch Air Carbon Filter Smellines Control with Australia Virgin Charcoal for Inline Duct Fan, Grow Tent, Pre-filter Included, Reversible Flange 4" x 12"

The VIVOSUN 4 Inch Air Carbon Filter is a game-changer for indoor growers. With its Australia virgin charcoal and 4" x 14" reversible flange, this filter ensures outstanding odor control and improved air purification. The pre-filter included extends the filter's lifespan, making it a cost-effective choice for your inline duct fan and grow tent. VIVOSUN's quality and performance are evident in this product, making it an essential addition for anyone seeking top-notch smell control in their indoor gardening setup.

So for starters, I am using this with a six inch inline fan connected with a reducer fitting to make a DIY air purifier, I have no idea how this performs with the 4 inch fan as I assume that's what most people pair this with.My purifier is an extraordinarily basic design, but it is the activated charcoal in it that really makes it special. It has been able to filter just about any bad smell/VOC I've come across and has cleared my 300 sq/ft garage of spray paint fumes in less than 10 minutes (granted the small door was open but I was still impressed). Also I painted the closet in my bedroom and neither my girlfriend or I could smell a thing sitting barely 10 feet away when we had it between us.So this filter really works as far as I can tell, sadly I do not have any air quality monitoring devices on hand to make a confirmation. I'm not entirely sure how to check if the charcoal needs replacing so I can't say too much about longevity just yet, however I have been using my home-made air purifier almost daily for a good 4-5 months now and it seems to still be doing a pretty good job. With how much I use spray paint, epoxy, and solvents I'm fairly impressed it's helped protect me from all the breathing buddies for this long.

This is a game changer. Looks amazing and the build quality is top notch. the air flow is great even with the sleeve on it. this isn’t the cheapest filter on the market but you pay for what you get, and this speaks for itself. I use this to get rid of the smell of my plants and it completely eliminates the odor. however i actually bought a second one to use for my soldering station to filter out the lead smell and possibly particulates from the air above my work station and it seems to be doing the job perfectly. this not the cheapest, but certainly the best 4 inch filter on the market.

The reversible flange isn't airtight that's why I put 4 stars . I duct taped the inside between th hard plastic and flange to fix that .at end of First week of flower chlorophyll smell and "WHAT NOT"was bad so bought this and after installing I have now zero smell coming out of tent .works good with 195 cfm fan. No seriouse reduction in suction or nun noticeable anyways . Notbad for first day for the money will update in a month if and when it stops working but all around seems like solid product. My order came with no loose carbon and I couldn't hear it even shift when I shook it so I feel bad for those negative reviews who got a 1 in a 100 bad product I wouldn't shame this 4in by 14 filter just yet. If u feel u purchased it and sum the ain't right ur probably right it happends return it tight away don't wait till ur screwed. Then that's on u. But mines workn fine . Can't even smell the lavender in there . Oh its a 3ftx3ftx6ft tent with 400whps and 195cfm fan I have all being filter through this 4x14 vivosun carbon filter. I'ld as of now buy again.I just mite run two exhaust cause the price is there and my tent running 95 degreesI hope this review was helpfull! I tried to give the best of my knowledge so far. Workn on a way t I refill these will also make a review on how once I figure an easy way. --- just checkn back in still no smell on January 5th 5 weeks into flower live love Maine lol

works very well

This does what it’s supposed to do - reduces smells and looks good doing it. 4” flex tube clamps on without a problem. Not much else to say!

I was really worried about growing in my apartment. However, ever since I hooked this bad boy up I have had no problems with smell at all. I just got it so I can't speak on the longevity of the carbon but I can say you won't have to worry about any smell leaking out (I only have 2 plants for reference). The only downside it that much like an inline fan the carbon filter is also a pain to hook up by yourself but it's possible.

I bought this for my indoor garden. Runs quietly, filters the smell, easy to clean. The cover can be washed,. Excellent service.