HéliSMUR 31 is the specialized air ambulance wing of SAMU 31, based at the Toulouse University Hospital (CHU de Toulouse) and renowned for its high operational volume, having conducted over 1,500 missions in 2024 alone. It is unique in France for maintaining two dedicated helicopters year-round, with at least one available 24/7 for immediate pre-hospital interventions and critical inter-hospital transfers across the Haute-Garonne and neighboring departments. Operated by specialized pilots and carrying a complete medical team of a doctor and nurse, these aircraft (often Airbus H135 models) are equipped as mobile intensive care units, capable of landing in fields during the day or at designated illuminated stadiums at night to ensure the "golden hour" of care for life-threatening emergencies like trauma or cardiac events.