Embodiments relate to systems and methods for gas delivery for personal medical consumption having safety features. A hydrogen or oxygen gas delivery system herein can include electrolytic cores performing electrolysis-based reactions, and obtain free hydrogen (H2) gas for collection and delivery to a user. In aspects, the electrolytic core(s) can be scaled to produce a sufficient amount of hydrogen (H2) or oxygen (O2) gas so that the user can ingest that gas directly, without a need for storage. The system can be portable, and configured with a delivery tube for transmitting hydrogen or oxygen gas to a user. While safety risks are generally minimal, the system can be configured with sensors to detect fault conditions or hazards such as combustion or overpressure, which can only be caused by deliberate user action to expose gaseous products to flame or spark, and even then would not be likely to trigger violent combustion.