What does the ionclean button in a car mean?

[LaBrayden]

The ion button in a car refers to the negative ion air purification function in the car's air conditioning system, which can improve the air quality inside the vehicle to some extent. When the car's air conditioning is set to the ion position, the air conditioning motor releases negative charges into the air through high voltage while blowing air. This causes tiny particles in the air to attract and condense, which are then intercepted by the air conditioning filter, achieving the effect of purifying the air. More related information is as follows: 1. Recirculation: This mode draws air from inside the car into the air conditioning system and releases it back, circulating the air inside the car to maintain freshness. Recirculation is mostly used in environments with poor air quality. 2. Fresh air mode: This mode draws air from outside the car into the interior for immediate air exchange. Fresh air mode is mostly used in environments with good air quality.