It's getting hotter and hotter. When you stop, do you turn off the fire first or turn off the air conditioner first? Many car owners often think of turning off the air-conditioning after the fire goes out. In fact, this practice is very harmful!

　　错误做法：先熄火再关空调

　　Wrong Practice: Turn off the fire first and then turn off the air conditioner

　　先熄火再关闭空调对发动机是有害的，因为这样在车辆下次启动时，发动机会带着空调的负荷启动，这样的高负荷会损伤发动机。

　　It is harmful to the engine to turn off the air-conditioner first, because the engine will start with the air-conditioning load when the vehicle starts next time. Such high load will damage the engine.

　　好的做法：在到目的地之前几分钟关掉，这样可以开启自然风，使空调管道内的温度回升，与外界的温差，从而保持空调系统的相对干燥，避免霉菌繁殖。而且也应该在车辆启动两三分钟、发动机得到润滑后，再打开空调。

　　Best practice: Turn off a few minutes before arriving at the destination, which can turn on the natural wind, make the temperature in the air-conditioning pipeline rise again, eliminate the temperature difference with the outside world, so as to keep the air-conditioning system relatively dry and avoid mildew reproduction. Also, the air conditioner should be turned on after the vehicle starts for two or three minutes and the engine is lubricated.

　　对空调的使用方法，很多人并不是很了解，一旦操作错误，不仅影响空调系统的性能和寿命，还会损害车内人员的健康！

　　Many people are not very familiar with the use of air conditioning. Once the operation is wrong, it will not only affect the performance and life of the air conditioning system, but also damage the health of the people in the car.

　　1、出风口是随意拨动的吗？

　　1. Is the outlet moved at will?

　　有些司机在开空调时，对空调吹的风向并不注意调整，从而影响空调效果。由于热空气上升、冷空气下沉的物理原理，建议驾驶员在开冷气时应将出风口适当朝上，开暖气时则应将出风口适当朝下。

　　Some drivers do not pay attention to adjusting the direction of air-conditioning when they turn on air-conditioning, which affects the air-conditioning effect. Because of the physical principle of hot air rising and cold air sinking, it is suggested that the air outlet should be properly upward when the driver turns on the air conditioner and downward when he turns on the heating.

　　2、空调使用时间也有考究？

　　2. How long does the air conditioner last?

　　不少司机往往都是一上车就开着空调了，而长时间使用汽车空调，就会大大增加冷凝器压力，从而大大增加制冷系统损耗。所以，空调使用时间不宜太长，当车内温度达到比较舒适的温度下，可适当将空调关闭一会，过上一会再重新开启空调。

　　Many drivers often turn on the air conditioner when they get on the bus, and long-term use of the car air conditioner will greatly increase the pressure of the condenser, thus greatly increasing the loss of the refrigeration system. Therefore, the use of air-conditioning time should not be too long, when the car temperature reaches a more comfortable temperature, the air-conditioning can be properly shut down for a while, and then re-open the air-conditioning later.

　　3、夏季进车立即开内循环？

　　3. Drive the inner cycle immediately in summer?

　　在炎热的夏天，很多车主习惯一进车内就打开空调的内循环，认为这样可以让车厢内温度下降得快一点。这样做是错误的，因为车内的温度比车外温度高，所以这样反而效果不好。由于内循环是空气在车内的循环，使车内含氧量逐渐降低，当气缸中的汽油燃烧不，产生的一氧化碳、二氧化碳就可能会漏进车厢，从而导致车内空气越来越差。因此，建议车主在使用空调时应开一会内循环，再切换到外循环，以启动换气的作用。

　　In hot summer, many car owners are accustomed to turn on the inner cycle of air conditioning as soon as they get into the car, thinking that this can make the temperature in the car drop faster. This is wrong, because the temperature inside the car is higher than that outside, so the effect is not good. Because the internal circulation is the circulation of air in the car, the oxygen content in the car decreases gradually. When the gasoline in the cylinder burns unsafely, the carbon monoxide and carbon dioxide produced may leak into the car, resulting in worse and worse air in the car. Therefore, it is suggested that the owner should turn on the inner cycle for a while and then switch to the outer cycle to start the ventilation.