I think maybe in a couple years I would be comfortable enough to use these...But they definitely sound like a nice idea...12 hours, and they last for 10 years. Good point about saving land fills. That's really nice.
I've actually seen one, I believe, and they look almost like mesh? Maybe that was a diaphram.
Hmm, I'll have to ask my mom what she's heard about them. I'm sure she's got a lot of patients that would like that, and she works across from a high school.