We tested the Idrogen on Saturday. I only had a 500 ml bottle (instead of 250 ml) but the ORP still came down to below -150 mV. The H2 seems to escape through plastic – after 3 hours, the ORP had risen to about -50 mV, but that is still MUCH better than any other drinking water. Very impressive!
The ORP stands for Oxidation-Reduction Potential. The best definition I can give is that “ORP is a measure of the cleanliness of the water & its ability to break down contaminants”. It has a range of –2,000 to + 2,000 and units are in “mV” (millivolts).