Product review (5 stars): No worries about my cigars drying out.
I use these in both my 100 & 200 cigar humidors. I check them every two weeks and could probably change that to once a month. I use more than the recommended number (1 per 50 plus 1). My cigar store said they'd just work longer. The are a LOT less work than anything else I've use. No worries about my cigars drying out.