For those who are tent growers this is the set up I have been running for over a decade.
First, here is how I vent outside.
That is a window well and I have it blacked out. The 6" ducting runs from the can fan to the window which has a 6" hole cut in plexiglass that replaced the window.
Inside the tent I have the charcoal filter hanging from the top of the tent and have the ducting running to the can fan and out of the tent to the window. I turn the air in the room over twice a minute so the air is always fresh and cool inside the tent.
Back outside the tent. I run a separate filter (scubber) up and though the cool tubes to keep the lights circulating and mitigating more heat. This also helps control the smell when trimming and when I have the tent open and working on the plants.
This is where the ducting comes in from outside the tent and through the first light.
This is the second light and then back out of the tent and to the outside of the house.
Simple set up and I can control both humidity and heat with speed controls on the fans. I haven't changed a thing since the set up does exactly what I want and need it to do.
One thing I forgot, back to the first picture. The vent at the top of the picture is my intake into the basement. Fresh air from the outside.