4inch Carbon Filter Odor Control with Australia Virgin Charcoal Two Prefilter 1 Pair Rope Hanger Included for Inline Duct Fan, Grow Tent, Hydroponics, Odor Scrubber

Works great on smell thanks

Works excellent, beside having to buy multiple covers for it, its one of the best out 👌

So we have a couple rescue cats. The dust from the litter boxes gets to me and I hate it. So I was looking at different air cleaners and so many were way too expensive just to filter the air a bit in the basement.I found this and bought a digital on/off timer so the fan and filter could cycle the air for a few minutes every few hours or so. It works so good that any odors and dust were quickly pulled from the air. If you keep the supplied sock (pre filter) on the filter it’ll last a very long time.The only issue I have with my setup is that sometimes it creates a lot of noise. Mounting it to something solid helps but the fan connected to the filter will get a bit of a squeak at certain speeds.I also bought a variable speed switch for this so I can control how hard the fan works.If you don’t have the money for a fancy setup you can get my entire setup for much cheaper than paying full freight for an all in one air cleaner.I paid almost $200 for an air cleaner with UV/filter/etc but the filter crap out very fast and they are very costly.A lot of people don’t realize with a little ingenuity you can create a very comparable setup at a much cheaper cost. Clean air is a must these days!

I bought an identical filter as part of a bundle, luckily it fit the exaust blower without the need for ducting. It will not simply slide onto all extract/blower fans as I have found out. You may need to use a few inches of ducting and a couple of clamps. It'll leave carbon on you and the area around it so use one of the two provided filter covers. It seems to keep the smell down.

Zero, and I mean zero smell. Great quality filter and will fit in most small to medium grow tents. Airflow does not seem to be obstructed. Very good investment.

These are just the standard 4 inch charcoal filters for various exhaust systems. The items are well-made, but contacting the seller is a nightmare. Each filter was supposed to come with 2 rope ratchet hangers and two-pre-filter jackets. One of my filters came with those accessories, the other did not. I contacted the seller, but no response after a week. I'm giving it a 1 star because of the lack of contact by seller. The accessories are junk, but I want my junk for which I paid.Update: After quite some time, the seller contacted me. The only options were to send the filter back to Amazon for an exchange, or get a refund by doing the same. I found it all very inconvenient to say the least. The seller offered to give a refund of the one filter instead without my having to return the item. Issues resolved.

I personally grow and smoke herb in my home, and between the two activities there's definitely a very identifiable smell to my house lol. As a newer grower that's slowly building up a grow room with limited financial resources during the pandemic, going cheap is the only way for me to be able to grow right now. After some research I came to realize that even a small, cheap carbon filter can do wonders to clear multiple rooms of air - and this particular filter was everything I could have dreamed.It's small, cheap, and easy to assemble (though heads up - you'll have to grab the ducting and fan separately), but doesn't look or feel cheap from my admittedly limited experience. It's really cleared my entire house of smell and made a noticeable difference at a price i'm really grateful for right now.Is it the most powerful or high end? No, but if you're a new grower feeling the pain of buying a bunch of growing supplies to start out or just have a smaller space in need of some smell-free air, I highly recommend this. Even if you have a larger space but can't afford a bigger carbon filter or you feel like testing how much one can make a difference, I really recommend giving this a go because it WILL make enough of a difference for you to feel out whether you want or even need to invest in something bigger.

I'm using this with a pre-filter to exhaust odors from the room where we keep our cat box. I have 4" ducted fan that keeps negative pressure in the room exhausting the feline smells, outdoors via a vent. Filter lasts a bot over a year, then needs to be replaced.