This research presents the design and development of a compact singlet oxygen energy (SOE) generation device aimed at augmenting athletic performance. The device employs a photosensitizer to activate atmospheric oxygen and generate singlet oxygen upon exposure to red light. The subsequent return of singlet oxygen to its ground state and releases energy, known as SOE. Through a comparative analysis of exercise pulmonary measurements in 12 untrained volunteers, we determined that the inhalation of SOE, either pre-exercise or during exercise, can elicit physiological adaptations and enhance exercise efficiency. Specifically, SOE inhalation was found to decrease exercise heart rate, reduce oxygen consumption, and lower blood lactate levels. A concomitant reduction in carbon dioxide output is also anticipated. These findings suggest that our device optimizes oxygen utilization and availability, promotes aerobic metabolism during exercise, mitigates muscle fatigue, and ultimately enhances performance, especially in untrained individuals. Ongoing clinical trials are investigating the feasibility of extending the application of this technology to the general population.