After receiving my first Newair coolidor, I had problems where the RH levels would gradually rise all on their own and without an added Boveda pack. Newair sent me a replacement, and the same problem persists.
                    I've decided to keep the unit anyways because it's the only way I can continue my cigar habit. I have to remove my cigars and shelves once every four days and insert a bowl of baking soda until the RH levels drop to 63 or so. As stated before, I don't use humidification in the unit because it creates its own.