H2 Analytics Laboratory Report - Echo Go+

Attached are the full reports from H2 Analytics and SGS Water for your review. Below is a summary of the testing results, including the dates they were conducted:

H2 Analytics Testing – 4/20/2023
(Attachment: Echo Go+ H2 Test Report (4-20-23).pdf)

Results:

• Short Cycle (5 min):
  • Dissolved H2: Mean - 2.43 mg/L (ppm), SD - 0.17
• Long Cycle (10 min):
  • Dissolved H2: Mean - 4.59 mg/L (ppm), SD - 0.62

SGS Testing – 4/30/2024
(Attachment: Echo Go+_SGS_Water_Rpt (4-30-24).pdf)

There were no issues with the analytical events in this report unless otherwise noted. Results reported as non-detect (ND) fall below the Practical Quantification Limit (PQL), while results above the PQL are reported as measured values. Quality control data aligns with laboratory-defined or method-specified acceptance limits unless noted.

Go+ Bottle Testing After 1 Year of Use – 11/25/2024
(Attachment: Echo Go Plus (used) H2 Test Report (H2AR-241125-1).pdf)

Results:

• Short Cycle (5 min):
  • Dissolved H2: 2.80 mg/L, SD - 0.01
• Long Cycle (10 min):
  • Dissolved H2: 4.59 mg/L, SD - 0.22