I have this air conditioner issue and small room.Once in a rainy night with the ac turned on everything was moist inside my room including my pc.There was moisture all over my screen & also the back of it.I didn't open the cabinet to check whether the inside was wet or not but outside of cabinet was wet.I turned on my pc after 9 hrs of that incident.Right now it is running fine but i fear if it has any long lasting damaging effect over my pc.Some guys are saying it may decrease the longevity of my GPU and all.Don't know what to do!