I'm not trying to say that 50-60 is law, but what I am looking for is the source of this info. Plus 30s sounds just too low. At least 40s is closer to the average info out there. I want to be able to judge the credibility of the source of the info. I've not seen anyone come out and say it is fine, and that doesn't mean it's not out there. I would like to know who it is that says this and what amount of experience do they have? I took a lot of information as gospel when I first started in this hobby, and now I'm trying to get as much info as possible. But in order to process that info, I would like to get as much info on the source. And do these people say 30-40 % is ok or ideal? I'm just wondering. Give me info... and keep it coming.

The reason I'm so curious is because I've been looking into human humidity requirements. I've heard some people claim that when the humidity drops drastically in the winter, that it is partly responsible for illnesses and such. *shrug* Still looking into that info right now, which is why this struck me as interesting. I know my husband will slap me into a looney bin if I try misting him this winter. lol