For a long time, ambulances have faced a vexing dilemma while on duty: to ensure the continuous operation of the air conditioning within the medical cabin, the vehicle's engine has had to idle for extended periods. This not only results in significant fuel consumption and operational costs but also forces medical personnel and patients to work and undergo transport amidst constant engine roaring and vibration; furthermore, the emissions generated by idling engines place a continuous strain on the environment. Today, with the maturation and widespread adoption of DC electric air conditioning technology, this critical pain point is gradually being resolved.

The wail of ambulance sirens cuts through the city's hustle and bustle, as medical personnel inside race against time to save lives. In this mobile emergency room, besides monitors, ventilators, and defibrillators, there's another easily overlooked yet crucial piece of equipment – the ambulance air conditioning system. It has evolved from a simple temperature control device into a critical component for ensuring successful emergency care.