So I have a question about exhausting my tent. Is it more for fresh air or temp/rh control? I’m just not sure how long and how often it should be running. I have a 6in carbon filter in a 5x5 tent. Its on a short cycle repeating timer set to run for 5 min every 10 min. I see that a lot of folks on here use a temp controller for their fan. Any help is greatly appreciated. I went back pretty far back in the forum looking for an answer, before posting this, and couldn’t find one. Thanks grow gang!
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I run mine 24/7, just different levels depending on the stage of growth. It works for heat removal, humidity removal, odor removal and air exchange. Running 5 min on and 10 min off is really going to burn that fan out quicker. All those stop/start cycles aren’t good. Would be better to run an hour on, hour off if you don’t want to just keep it on.
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Thats what I see most doing. Thanks @BobbyDigital !
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@BobbyDigital
Now, what about the infinity fans and controllers? Are those designed to handle and operate with constant start/stop cycles? They sure look nice! Hahahaha!
I have the Infinity T6, and it hasn’t stopped running since I installed it.
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They don’t really start/stop. They increase and reduce fan speed to try and keep where you have it set.
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Ahhhhhh🤔 Worth it?
Depends. My ac infinities are always running. So the controller is really just a fancy hygrometer. They do have the S series that has a basic fan speed controller. They’re $40 cheaper and allows you to adjust fan speed but it’s manual and not electronically controlled. But that’s all I need.
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Thanks @BobbyDigital aka (the Rza)
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@BobbyDigital
Pulled all the girls out tonight, cleaned the floor, changed some fan placement, took the timer off of the exhaust. I always felt like it should be on 24/7 but wasn’t sure. Thanks again Ruler Zig-Zag-Zig Allah! Hahaha! Love me some Wu!
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Ah, you know the divine alphabet!
Only from listening to rza and running across it here and there(fed prison). Haven’t even thought of that since the 90s!
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Run Exhaust Fan 24/7 maintains negative pressure in tent controls odor. Pulling hot stale air out through carbon filter an exhausting outside. 
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I run mine 24/7 too. I run an AC Infinity 8" in a 5x5. I don’t have the T model. Only constant speed fans. I’ll run it half speed when the plants are large and back down to 1/4 speed when the plant is smaller. Temps and humidity are well-controlled doing this.
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Yeah agree 24/7
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