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Your cart is empty.iPower 4 Inch Air Carbon Filter Odor Control with Australia Virgin Premium Charcoal and Reversible Flange for Inline Duct Fan/Grow Tent/Hydroponics, Prefilter Included, Black
KuKu
August 28, 2025
Perfect for my grow tent! This thing eliminates odor almost completely. I legally grow medical cannabis indoors and want to be a good neighbor as well as keep a low profile. I installed this product inside my 4'x4' grow tent by hanging it near the top and vented up/out via a 4" inline exhaust fan mounted just outside the tent. The exhaust ducting flows up through an opening in my garage attic space to an 8" roof vent. Even during the stench of the flowering phase I never once smelled the fruits of my labor. The removable and washable pre filter cover shows how much this filter works and also helps prolong the effectiveness. The reversible flange is nice feature to get a little more mileage out of it for my last 4 month grow this year. I also have one in my drying tent simultaneously, venting out of the same 8" roof vent with the same results. I have also purchased back ups for both tents and will continue to purchase the product in the future if their quality remains as it is.
Alycat
August 11, 2025
This is a great filter. I bought it because it mentioned it was made partially out of aluminum and a little lighter then the other ones. I didn't really know what to expect but figured I'd give it a shot. I was a little worried when I unboxed it because it was a little dusty with loose charcoal dust. After about 2 minutes of me shaking it out over the garbage can though it was good to go. It's definitely a couple pounds lighter then the others which can make a big difference. I also love that the top and bottom are just screwed on so you can reverse it to get use out of the back half, plus it makes refilling it alot easier if I ever wanted to give that a shot. It works a little better then the cheaper one too which is a plus.
wPublicName
July 25, 2025
I have purchased 2 of these actually. The first one was fine. The second one leaked air from the top where the flange for the vent attaches to the filter media itself.One nice thing about the filter is that you can technically disassemble it, which I did for the leaky one, and put in a gasket (made of the packing material for the filter actually) which stopped the leaking. Having to do this is the only reason its not 5 stars. Had I not realized that it was leaking it could have been awkward.Despite being able to mostly disassemble this, you can't replace just the media, at least not with media of your own. If/when the charcoal becomes ineffective, plan on replacing the entire unit. I have been using my older one for about 6 months for filtering cigarette smoke and seems to be about as effective now as it was on day 1. I don't know how this translates for other filtering purposes.Specifically about smoke. This filter's primary intended application is likely not for smoke. Smoke has particulate that a charcoal filter alone shouldn't be expected to remove.That said, the air coming out of the filter (with no modifications) appears clear, but you can still smell smoke odor even though the intensity of the odor is nowhere near as strong as no filter and is better than a lot of filters.I have owned other filters specifically for smoke and smoke odor that perform better (Homes aer smoke grabber specifically), but the units they work with are cheaply made, weak (you have to carefully direct the smoke into them), and bulky (not easy to just set on a desk next to your ashtray), and they need frequent replacement which becomes expensive very fast.With this charcoal filter, you pick your fan, you install ducting, and you pick where to place the bulky parts. Not to mention its customizable. My setup actually goes CML Supply Solder Smoke Fume Absorber Replacement Filter 5pcs (at the intake duct opening) -> Nordic Pure MERV 12 Furnace Filter media (cut and shaped into cylinder to fit inside the charcoal filter - keep the pleats though) -> this charcoal filter -> the supplied "pre"filter (wrapped around the outside of the charcoal filter). With all of this in place, then the smoke odor (to me, a smoker) is unnoticeable. Perhaps a non-smoker in my apartment might be able to tell I have smoked in here, but my objective was to reduce the odor to where my neighbors can't smell it, which this has done, and this charcoal filter has certainly done the heavy lifting to accomplish that.
Andy
July 20, 2025
Works great smell no odor good value good quality good price.
Smokedup
June 20, 2025
Does what it says
Ravi N.
May 19, 2025
Did not purchase it for the purpose of growing anything, instead, my use case was cooking odors. We cook a lot and winters here do not allow opening of doors and windows. So I was looking for an air purifier with a lot of active charcoal. Unfortunately, there were only two options - either the generic air filters (not a lot of active charcoal) or the four hundred dollar purifier with 15 lbs of active charcoal.This was my (DIY) compromise.Combined with a fan () and a 4-inch duct connector and two clamps, I have a basic air filter with a ton of active charcoal at a fraction of the price.
C. STONE
April 3, 2025
I have been running this type of setup for odor reduction near cat boxes for a few years now. The last filters I ordered (last year) were crap and the flanges didn't line up right. But they did the job. I just replaced both of them last night immediately after having asbestos removed from my entire basement. The fumes were overpowering. I fired my fans back up with my two new 4x12 filters and by morning the smell was almost completely gone. Normally when I shut these off to hear the tv downstairs or whatever it doesn't take long to notice the litter odor. When these are running they eliminate all of the odor. You can see in the photo how I run them. I have two in an 800 square foot area. The fan just sits on top.
Chad hill
April 2, 2025
Good filter works perfect for my needs
nate
March 31, 2025
Textilüberzug ist dabei.Funktioniert und fühlt sich sehr gut verarbeitet an.Hatte ihn einen Run im Einsatz, lief perfekt.Musste bisher die Kohle nicht austauschen, wenn würde das aber gut gehen, da man den aufschrauben kann.
K
March 25, 2025
ã“ã®ãƒ•ã‚£ãƒ«ã‚¿ãƒ¼è‡ªä½“ã¯ã‚¿ãƒã‚³ã®ç…™ã®åŒ‚ã„ã‚’æ°—ã«ãªã‚‰ãªã„レベルã«å‡ºæ¥ã¾ã™ã€‚基本ã¯ãƒ€ã‚¯ãƒˆã«æŽ¥ç¶šã™ã‚‹ã ã‘ãªã®ã§ç°¡å˜ã§ã™ã€‚ãŸã ã€ã“ã®è£½å“ã¯ãƒ•ã‚¡ãƒ³ã‚„ダクトãªã®ã©å‘¨è¾ºæ©Ÿå™¨ã‚‚ãŠé«˜ãã¤ãã¾ã™ã®ã§ã”注æ„を。(ファン1万+ダクト 1000円+テント(喫煙室)1万+ã“ã®ãƒ•ã‚£ãƒ«ã‚¿ãƒ¼1万ã®åˆè¨ˆ3万1000円ã¨ã€ãã®ä»–ã‚‚ã‚ã‚‚ã‚)
Paulina RamÃrez
March 8, 2025
Esta bueno pero necesitas un ventilador para mi gusto que jale como 200cmf o mas, para poder funcionar bien en el espacio de mi tienda de 1x1mt
Jean
January 15, 2025
Removes all the smell and seems durable.Minus 1 star for the incredibly tight dust sock, that thing took more than 5 minutes to force over the filter.
EarthWatcher
January 11, 2025
This filter has lasted me for a while now. Used for three grows and it still functions good. Thankyou seller.
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