Mixed Gas Blender and O2 Tech
NAUI Mixed Gas Blender/O2 Tech is a support course for students who need to safely handle high-pressure gases, prepare oxygen-enriched air and helium-based breathing mixtures, and prepare equipment for oxygen service. The official NAUI page states that graduates are considered competent to prepare oxygen-enriched air and helium-based breathing gases, and to prepare scuba equipment for oxygen service when they have appropriate manufacturer authorization for the brand being serviced.
This course is most relevant to dive-center staff, technical divers, instructors, and equipment-support personnel who work around nitrox, trimix, heliox, and oxygen-service systems. NAUI lists the minimum age as 18. Because equipment service is manufacturer-specific and responsibility-heavy, students should confirm exactly what service authority is included and what brand authorization is required. The class should be approached as technical life-support training, not as a casual gas-filling overview.
Training normally includes academic work, gas-handling concepts, blending procedures, oxygen-service preparation, analysis, labeling, and documentation habits. In High Springs, Florida, Mixed Gas Blender/O2 Tech supports cave, trimix, rebreather, and decompression training by improving the quality of the gas and equipment preparation behind the dives. The expected outcome is practical competence, better oxygen-awareness, and clearer respect for the limits of both the blender and technician roles.
