[TipTopBread]

Can someone provide me with the best range of RELATIVE HUMIDITY for the storage of baseball cards? I have been asked by another collector who stores cards in his home, he indicated he has several rooms in the home for storage. However the rooms vary to some degree in the % of RELATIVE HUMIDITY. I quite never thought about it, since my storage is within a safe deposit box at a bank. I just told him that I would not store them in the highest RELATIVE HUMIDITY room, but I was not sure if a LOW RELATIVE HUMIDITY room was the best answer. I had thoughts it may tend to have a drying out effect on such cards. Can anyone respond, it would be greatly appreciated. Thank you!!! P.S. most cards are slabbed.