4" Inch Grow Tent Air Carbon Filter Smellines Odor Control with Clothed Pre-Filter and Lanyard for Inline Duct Fan, Grow Tent, Hydroponics Odor Scrubber

Unfortunately I bought 3 of these and none of them work. The smell is very strong and not being filtered out. Was hoping these smaller filters would work while being easier to fit in tight spaces. No such luck - they did not scrub properly for the CFMs it was rated for. Waste of money. I had to replace all 3 with Vivosun filters

I don't normally do thisbut here we goThe product is poorly madeit stopped working 1 month after usage date when I mean stopped workingI mean the particles inside became compact which restricted airflow to my outtake fan buying these products because they're cheap you have to keep in mind that you get what you pay forI opened it up and I see that they use dust particlesas opposed to chunkswhich allowed them to become compressed and reduced the airflow to almost zeroI'm glad I have money and this wasn't all I had so now I have to buy another onejust basically wasted money

I use this in a modest 30x30 inch tent. I reordered it because the last one worked really well for 2 1/2 years.

I've purchased 3 of these so far and will likely keep buying them. Reliable, good product - Worth the money

It reduces the sign but it also greatly reduces the air flow, I understand that it will with any filter, however this one seems more than most.

Been with Topogrow for several items , this was to Match a new TP 4" fan , sweet set up , 4" FAN n FILTER / both Topogrow...

Not What we expect

it works