Tap water has very little oxygen in it. Neither does most bottled water. The pure water taste is quite refreshing and Oxywater caused my blood oxygen as gauged by a Pulse Oxymeter, to increase within 10 minutes after consumption. No fire hazard either. I am using it daily and triple my consumption when I fly in a plane, spend much time in an office building with windows that do not open or having had a particularly stressful day.
Health professionals take special note.
I also used it before and after the liver cleanse and I believe it may be able to detect poor liver function. The reason I believe this is that prior to the cleanse my blood oxygen would dip for an hour after the water was ingested and THEN raise. After the liver cleanse there was no dip, only an increase in blood oxygen as again measured by the Pulse Oximeter. This a study about liver function tests using the breath. It strengthens understanding of the importance of the diagnostic relationship of lungs and liver.