I agree with Dave, dry ice could present it's own problems.
There is more than one way to skin a cat. For those who enjoy smoke cheese but the weather is too warm to smoke it outside, consider this. If a small amount of smoked cheese is desired. Simply slice it and lay it on a rack within a covered dish, using a handheld smoke generator apply smoke and allow it to rest for a few minutes. The cheese will collect a layer of smoke and you will have smoked cheese.
Wouldn't you know, just as I posted the above, my wife came in from the store with a pound of sliced swiss. She asked if I would smoke some for supper? Answer: I would love too my dear.