Are there any other substances, gases or liquids that need to be considered?

No. There are no other substances released beside H₂, O₂, H₂O (steam) and KOH (when drained). During each purge 1-10ml of water (mostly liquid) is released. The O₂ vent line contains 250 NL/h of oxygen saturated with water vapor.

January 11, 2022