venting

Gonna be running a 210w LED in this setup with a 4 inch 190cfm inline fan pulling hot air thru a carbon filter out the top. Do I need another fan pulling air in? Or can I just put ducting in one of the smaller holes at the top and leave it at the bottom of the tent for the cool air to draw in...

Looking for suggestions on ventiativen my 15.5x17.5x7.5 grow room that has two doorways and one window. Also I'm trying to do this as inexpensively as I can... Is there an exhaust/intake fan window kit or something along those lines ? My room can get high humidity throughout the day and I've...

I am a Michigan patient and caregiver who is growing my own meds. I am currently taking my time and finishing my first "serious" indoor garden. I have years of experience growing in and outdoors. However, I have never harvested cannabis. I have a few 3D models of my grow area attached to this...

Question - I want to set up two 1k lights with external pass through air in a sealed room, air from outside passing through the lights, back to the outside, but have those external vents shut off and have the air circulate internally if the room temp is low, so that I am not wasting light...