running computer with side case off

i'm currently running the computer with one side of the case off, not the side where the motherboard is but the other side. is this safe as long as I don't go sticking stuff in there? It's only temporary.

>>7

Airflow is slow and doesn't always work the way you want it to. Place some smoke dye infront of the case and watch it create eddies in the lower corner and the top corner infront of your power supply.