OOPPEN 6 Inch Professional Odor Control Air Carbon Filter Air Scrubber with Activated Charcoal for Hydroponic Plants Grow Tent & Inline Duct Fan(Carbon Layer Thickness 38MM, 6"/150mm, Black)

Not as good as the write up still smells n I got a very small room

Good quality filter but wafer thin jacket and nothing to hang with in the box. That would have been useful as it's too large and weighty to hang without straps on your own.They add another spare jacket but even with both together they wouldn't be more than a cm thick.I'm still waiting for duct so haven't used it yet but first impressions are its a great filter all told. Robust, well made and truly heavy.Make sure you tick the Amazon packaging box at checkout too.. I didn't and wondered why the delivery guy looked at me oddly... The product info was all over the box :)Its not easy to find better for the price. I searched extensively for a good deal and ended up here.