I chose Dry Zone because they were recommended to me by Habitat. My crawlspace looks and feels great now, but my home is still running humidity levels as high as the temperature. I fill buckets of water daily. My ductless mini splits leaked 4 times in a 30 day period. Feeling very frustrated. The mission of Habitat is to eradicate poverty, bit of this continues, it puts people in houses that will have expensive modifications within first year.