Should You Turn on AC and Recirculation When Using Cold Air in Car Air Conditioning?
3 Answers
When using cold air in car air conditioning, you should turn on the AC button and recirculation mode. Here are some car air conditioning maintenance tips: Comprehensive air conditioning inspection: Before first use in summer, check the air conditioning system thoroughly, such as inspecting the refrigerant level via the reservoir, checking if the cabin air filter is too dirty, and ensuring there are no foreign objects in the radiator. Pay attention to air conditioning cleaning: The cabin air filter should be replaced regularly as spring brings more sandstorms and willow catkins, which can accumulate on the filter and breed bacteria, causing musty odors in the air conditioning. Additionally, the condenser should be cleaned periodically, and the radiator should be removed for thorough cleaning. Regularly operate at high fan speed: Air conditioning systems accumulate dust during use; periodically running the fan at high speed can blow out surface dust from the air ducts, which is a simple method to maintain cleanliness. Furthermore, use dedicated air duct cleaning solutions for disinfection, cleaning, and odor removal.
You must press the AC button to turn on the cold air, as that is the core function of the air conditioning system for cooling. Simply turning on the fan will only blow out ambient-temperature air, which won't cool down. I recommend using the recirculation mode—it helps cool the cabin air quickly. For example, after your car has been sitting in the summer sun, turning on the AC and recirculation will make it comfortably cool in under five minutes by recycling the chilled air instead of drawing in hot air from outside. However, don't leave recirculation on for too long, as stale air can cause discomfort, difficulty breathing, and even fogging. My habit is to use recirculation in city traffic to block exhaust fumes and switch to fresh air mode on highways for better ventilation. Regularly checking the cabin air filter and AC system is crucial to prevent bacterial growth and health risks. Smart usage not only saves fuel but also enhances comfort, especially on scorching days, ensuring safe driving without heatstroke.
Turning on the AC button is a must for cold air, as it's essential for cooling. Without it, the air conditioner just blows regular air. I also frequently use the recirculation mode, especially during hot noons—activating it immediately after entering the car cools the vehicle super fast by efficiently reusing the cold air. However, you shouldn’t keep recirculation on for too long, especially during long drives, as it can lead to CO₂ buildup, causing dizziness or chest tightness. In my daily driving, I combine AC and recirculation for quick cooling, then switch to fresh air mode to maintain balance. I also avoid setting the temperature too low; around 22°C is comfortable and energy-efficient. On humid days, I minimize recirculation to prevent window fogging, which is crucial for driving safety.
