How long do the nanobubbles stay suspended in the water? How do you know?

We were originally told the nanobubble stayed stable for 6 months based on calculations performed at Tokyo Electron. However, the most recent data now shows complete stability of the nanofied water (100% nanobubble saturation) for 2 years!

Suntory tested three ways: cyclic voltametry, water electrolysis and a laser counter. Suntory tested w/multiple samples ranging in size from 50ccs on up w/actual samples created over time (in other words, the sample that tested 2 years was actually 2 years old).