is this enough venting?

im planning to grow in the closet about 3x5... im plannign to put a fan, air cleaner and a 140 cfm squrriel cage fan venting air out of my room into my ceiling. will this be enough vent or will i need to get some fresh air inside as well??

Yea your good. What size light are you using? Click the link below for a simular setup. You should alway bring air in somewhere unless you are using Co2

planning to use 400w hps.. damn i hope my plants will get enough fresh air/ co2 from the bottom door crack lol

the air in is important,,I have a lower door fan taking in air,,a fan inside closet blowing air around,,and another exhaust fan up top to expel the heat and stale air,,I'm not sure in your space with a 400 hps light that just a door crack at the bottom will suffice,,Good Luck

Keep on Growin

HoLE