I live in the south. What is a preferred humidity level in conditioned air areas? I know what Winter is, but just curious about Summer time.

35 to 40%. It mainly will depend upon the persons occupying the area and the comfort lever they like the best. You also have to watch out for wood furniture etc if you lower the humidity to far.

HVAC1000, Thanks for the reply. I have a very good dehumidifier and was going to let it run as well inside the house. Its been close to 110 heat index in the Atlanta area. However the heat coming from the dehumdifier is pretty good, I am afraid I will be putting too much heat into the room.