Yes this seems a rather pointless idea and product, yet it's still not quite as bad as those "Oxygen Bars" that were cropping up all over a few years ago. Anyone remember those? People would sit around with colorful masks strapped to their faces, and sort of just stare off into space.
It always looked like a roving band of escaped medical patients who were stopping for a beer or something. I found the whole thing a little creepy.