wtf… how could a DRY area possibly provide optimal conditions for anaerobic bacteria? i think you’re a little mixed up here. it seems to me that, unless the subject were solely breathing out carbon dioxide through their mouth and receiving all their fresh air through their nose, that having a dry mouth would be beneficial in terms of smell. i do know from experience that breath gets bad when mouth gets dry, and that bad breath is a primary symptom of dehydration. maybe 35 percent of the population is just dehydrated..>? are you sure you’re not just trying to mark up some diluted food-grade hydrogen peroxide and sell it to the biggest group of people you can find?

also, use of spellcheck would be appreciated.