Which air circulation mode should be used when driving a car?
2 Answers
Automobile air conditioning systems generally have both internal and external circulation switches. When external circulation is activated, the air conditioning draws air from outside the vehicle, while internal circulation recirculates the air inside the cabin. It's recommended to alternate between internal and external circulation modes. Here's additional information: 1. Advantages and disadvantages of internal circulation: Internal circulation enhances air conditioning efficiency by recooling the already cooled indoor air, resulting in better cooling performance. However, prolonged use of internal circulation may degrade the air quality inside the vehicle, potentially causing dizziness or discomfort. 2. External circulation: This mode should be used when the outside air is fresh and of good quality. Additionally, external circulation must be activated for effective defrosting or defogging when using the air conditioning system.
What air circulation mode to use while driving depends on the situation. In city traffic jams, I often use the recirculation mode to cycle the air inside the car, avoiding inhaling exhaust fumes from outside. This not only protects the health of myself and passengers but also saves energy since there's no need to frequently heat or cool fresh air. However, in places with fresh air, like the suburbs or highways, I switch to fresh air mode to keep the cabin from getting stuffy. My habit is to start with a few minutes of fresh air mode when beginning a trip, then switch to recirculation for better temperature retention and energy efficiency. Occasionally checking if the cabin air filter is clean can improve efficiency. Overall, smart management of air circulation is both eco-friendly and comfortable, reducing carbon emissions and benefiting daily driving. After developing this habit, every drive feels more reassuring and economical, even saving some fuel costs – how great is that?
