@DeanOnAuto - I had smell escaping my tent, I thought my brand new filter was faulty or just terrible. Turns out it was mostly from unsealed vents and ports on the tent itself. If you're happy with the way it runs currently, I would advise taping shut all the vents, openings, and "cord sock" areas with the pull strings. The stitching is quite loose around those areas. Pay special attention to any vents that are closed with velcro.
I used aluminum foil duct tape on the inside as its shiny and I don't know if you can find it there but I had really good luck with Gorilla Waterproof Patch and Seal tape on the outside.
I also built a large 5 gallon bucket scrubber to vent the exhaust through. Bought some carbon granules, drilled a ton of holes, wrapped and ziptied furnace filters around the outside. 0 smell now unless I unzip during flower. A bit overkill with it all but after my first one started flowering I was sure I would be caught. Now, it's pretty good.
See if you can find these also. I hung a few around the, ah, storage areas. Put em outside on a bright summer day to recharge them.
Gonzo Odor Eliminator is made of volcanic minerals which absorb odors and moisture naturally, without perfumes or cover-ups. Perfect for use in kitchens, offices, garages, basements, cars & around pets.
gonzoproducts.com