I've been using a Cigar Oasis in each of my 3 Diamond Crown Biltmore humidors and they have maintained the RH at + - 2%. The Diamond Crown humidifier as well as passive foam humidifiers held RH at + - 8% on their best days and on bad ones as much as + - 12%. I went to the CO 18 months ago to solve this very serious problem and for the most part it did _ hey a range of 2% RH is a BOTL dream. But here in NJ [sorry] the change in seasons and inside climate control changes played havoc with the RH in my humidors. When the RH in them dropped that was no problem the CO easily handled it by dumping moisture into them _as designed but when the RH rose the CO was useless because it don't lower RH . I was hell bent on getting the CO and never thought about this short coming so for a couple of weeks a year. I had to play prop-the-top continually with 3 humidors and it's a royal pain in the ash. _ enter viper139's beads Viper139’s [Heartfelt] beads made the storing part of our hobby an interesting and satisfying part and not the part you dread. RH goes down they release or put moisture in your humidor, RH goes up they absorb or take moisture out of your humidor, I've replced the CO's 2 weeks ago but because I changed my RH from 70% with the CO's to 65% beads it took a little longer to stabilize, now they're at a happy 66%. OK now I got 3 CO's for sale _cheap_ and now I'm finally using the easiest, most accurate, consistent and IMHO the best available method of humidification there is [having used every type] _ hands down. Score viper139 beads 3 Cigar Oasis 0