Should the car air conditioning blue setting be turned to the maximum?

[StRyan]

The blue position at maximum provides the best cooling effect for the air conditioning. In summer, turn it to maximum for the coldest air. The lower you set it, the colder the air becomes. The red direction is for heating at maximum, where the higher you set it, the hotter the air gets. Here are some precautions for using car air conditioning: 1. The basic principle of car air conditioning cooling is that the refrigerant, driven by the compressor, continuously circulates within the air conditioning system to exchange heat, thereby changing the temperature of the air blown into the cabin to regulate the temperature. 2. When the air conditioning is cooling, the refrigerant, driven by the compressor, absorbs heat at the evaporator, changing from liquid to gas. As the surrounding heat is absorbed by the refrigerant, the temperature drops, and the blower blows this cooled air into the car, which is what we call cooling.