AIR EXCHANGE QUESTION??

hello fellow roll-it-uppers!! Just a quick question about air flow/exchange/movement at during lights off. I was wondering if you should still be exhausting and I taking air the same way as during lights on? I have a small oscillating fan that I run during lights off as well as my dehumidifier but I am unaware of I should be intaking and exhausting air as well. Any answers are greatly appreciated thank you in advance.

24-7 in my tent...

You dont need nearly as much at "night"

A small 8" fan from wally world will be plenty for a say 8x8x10'
Just as an example

Exhaust / exchange ? Nope, don't need to! Move some air around is all you really need - qwizoking has it straight!
The plant at night or lights out is not photosynthesizing so it needs no air "exchange"......It is going through cellular/chemical changes to "reset" for the light of the next day.....

Doc