bad idea to block my grow area?

[InvaderZim666]

cause yeah i block the entrance to my grow so its surrounded cause im just assuming it will help. or does it need like a source of oxygen more then its getting

[Opie Yutts]

Im not sure what you are asking here.

I'll just tell you this. My mothers are lighted by fluoros, and they are in a closet with the sliding door open about 5 inches. There are no fans, and everything is fine. You can have a sealed room with no problem; you just have to supply ventilation somehow, at least a little. A completly sealed room with no ventilation will very quickly kill your plants, especially if you are using HID lighting. Plants need to breath.