What is the most suitable temperature for car air conditioning?

[Patel]

In summer, the temperature inside the car should not be set too low. Generally, setting it at 26°C is optimal, and a temperature difference of within 10°C between the inside and outside of the car is the healthiest. Opening and closing the car door: Opening and closing the car door is the simplest and most practical method. When the driver's side window is opened, repeatedly opening and closing the passenger side door will accelerate air circulation, allowing hot air to escape through the driver's side window, naturally lowering the temperature. Opening the windows: While driving, you can open both the front and rear opposite windows simultaneously to create an air vortex, making it feel more comfortable. Using cooling spray: Spraying it on specific areas will indeed provide an immediate cooling sensation, but the effect diminishes quickly. It's important to note that this spray can only rapidly cool localized areas and does not significantly lower the overall temperature inside the car.