Either way it sounds not so nice, especially if you are in a public space as for example a shopping mall, were you just came to have some fun shopping with your family or so.
I have my doubts about the success of Health Monitors deployed in shopping malls and airports, but remember those places are just examples. Their priority is medical centers. Think about it, you are going to the dentist, pharmacy, hospital or general practice clinic, you usually have to wait in line. You might as well use that idle time to do the Health Monitor breath test while you are there anyway. Once this device becomes accepted they can expand to non-medical places.