Car Air Conditioning Evolution and Safety Practices Amid Rising Heat

Modern automotive air conditioning traces back to American engineer Willis Carrier, who in 1902 created a cooling and dehumidifying system for a Brooklyn printing press. The basic closed‑loop refrigerant cycle he devised remains unchanged. Packard was the first car maker to offer a factory‑installed system, beginning with the 1939 Super Eight and delivering it in the 1940 model year for about $274. Mercedes‑Benz later introduced optional air conditioning on its 1958 Type 300, and the technology gradually spread as climate change pushes interior vehicle temperatures above 40 °C, making cooling essential for driver concentration and safety.

The Austrian automobile club ÖAMTC advises drivers to vent a heated car by opening windows and doors, then start the engine, set the air‑conditioner to the lowest temperature, and run the fan at full. Recirculation should be used only for a short period (about five to ten minutes) before being turned off to prevent fogged windows and degraded air quality. The interior should be kept only five to ten degrees cooler than the outside, and cold air should not be directed straight at occupants to avoid circulatory problems. Following these steps helps maintain driver alertness and reduces health risks while using the vehicle’s air‑conditioning system.