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"

I set this up as a venting system for my Uniformation GT3 Ultra printer, and the way it handles fumes is excellent. The charcoal bed is thick enough that it completely scrubs the air, so those chemical smells don't stand a chance of taking over the room. It has a sturdy steel mesh design that allows for great airflow, and I really like that the pre-filter cloth is detachable so you can keep it clean. It’s a simple, effective piece of gear that connects easily to 4-inch ducting and works exactly like it should.

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.

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 . Not bad 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

Fast shipping, great product

Works as described, you can flip this one to give a bit extra time. Easy, good value, I keep one running permanently. Possibly Replace every 1.5 grow? But that's just my results.

The smoke detector always gives false alarm when cooking in a small studio…. My friends recommended a fan combined with this filter and it works amazingly great!!! No more smoke alarms during cooking!

Removes cooking smells pretty well. no more waking up in the morning coughing from the roommate cooking. Just a teeny bit of smell thats much more tolerable.

Seems to be of good quality. Would by it again!

Dit filter geplaatst als vervanging van een canfilter dat na ca 1 jaar geen geur meer opnam. De geur was daarna inderdaad onmiddelijk verdwenen. Echter na ca. 2 dagen was de geur weer steeds duidelijker waarneembaar. Filter erg snel verzadigd?

Ótima qualidade e bom acabamento. Foi entregue 1,5 semana mais cedo.

Das Produkt wurde im Oktober 2024 gekauft. Anfangs bestand eine gewisse Skepsis, da zuvor noch keine Berührungspunkte mit einer vergleichbaren Lösung vorhanden waren. Umso positiver fällt das Fazit aus. Es erfüllt genau den vorgesehenen Zweck: Gerüche dringen nicht nach außen. Die Aktivkohle scheint zuverlässig zu arbeiten und sorgt dafür, dass nichts durchkommt. Die Wirksamkeit ist wirklich beeindruckend und so in dieser Form nicht unbedingt zu erwarten gewesen. Zur Haltbarkeit der Aktivkohle lässt sich naturgemäß nur der bisherige Zeitraum bewerten. Über einen Zeitraum von rund 12 Monaten traten keinerlei Probleme auf – es waren keine Gerüche wahrnehmbar und die Funktion blieb konstant erhalten. Insgesamt ein überzeugendes Produkt mit klarer Weiterempfehlung.

High quality and an absolute bargain at this price. Used this as an exhaust filter for my spray booth and it is highly effective! Highly recommended.