Cigar, if your going to use passive humidification take a bowl of distilled water and place it on the bottom, close the door and leave it for a week, DO NOT wipe the wood inside down. You can look if its empty refill and repeat. if your going to use an active humidification system (and this is my recommendation, i.e. cigar oasis or hydra system) just put the unit in and let it run for a week before adding cigar. Do this and you should be fine.