Exhaust/venting

How do you vent if your hoods have no places for tubbing?Someone needs to explain this ti me. Does venting the growroom at night reduce humidity?I have a very small window in my room. Can I use that?

Yes you can open the window and let air in, but make sure the temps do not drop too low.
If your vent has no hole for tubing or its a batwing,etc. just put tubing near it so it pulls heat away from bulb.