Did you ever get 100% (for human nose) weedless smell?
I tried few but never got perfect smell - maybe 80% less smell
Increased it with O3 generator in exhaust pipe to maybe 90% but still there is little smell (plus O3 smell)...
yes i did achieve 100 percent,, my wife insisted on it,,
BUT it was constant effort it seemed,, I had to tape up every joint, and seam
Oh get this,, i had to duct tape my entire flex hose,, when a light was shined down the hose,, you and if you looked down the flex hose from one end,, you CAN see light shining thru the hose in places,, little pin hole leaks,, seems the ducting is made this way ,,
what thse joints and pin holes do is allow smell to by pass the filter,,
Also we have to tape the carbon filter canister ends,, they dont seal over the charcoal perfect,, and some air sneaks past the carbon in the ends,, so i always had to tape each end of the filter up about an inch,, as the weeks went by you could tape up further and force the air to travel over a differant part of the carbon bed
I always kept 2 filters on hand,, one filter in the grow tent ,,, the other being serviced and ready to go back in
what many of us do is we empty our carbon filters out onto a cookie sheet and bake the carbon in the over,, this recharges the carbon, if its really bad a soap and water bath,, then an oven backe
so as soon as my nose started to detect a smell,,,, increase the tape up, once 50 percent of the filter was taped,, i would switch filters and service the second one again