In addition to using the available cooling products, in fact, you can also use folk wisdom, cleverly will air conditioning refrigeration speed greatly accelerated. Some of them are cut and dried and is feasible for the new owners, some are individual veteran experience, not necessarily universal as well, but they also might as well try. Want to be in the shortest possible time, make the refrigeration effect to the best state, might as well use the following method. Want to open the window from hot compartment The window is closed, the highest efficiency of the air conditioning system. Recent noon under the sun of the temperature of the hot summer is comparable to, if a car parked in the hot sun for a long time, the temperature inside the car will be relatively high, therefore, some owners always used a into the car air conditioning. However, they found that poor air conditioning refrigeration effect. Is your wrong operation method. In so doing, not only make the air conditioning refrigeration effect is not ideal, but also can increase the engine in the operation of the initial pressure. So, get in the car after should put all the Windows open, first start the circulation system of air conditioning, heat made out, such as car after temperature drop, closed the window again, this time and open air conditioning, and adjust to the temperature. To hold down wind speed range Car normal operation, to prevent excessive evaporator frosting, air conditioning supply air velocity and temperature control should not be long in the lowest at the same time. But when the speed is less than 25 km/h, wind speed switch should be placed in the low speed range, to avoid the deficiency of electricity and air conditioning. But if the engine heavy load operation, should be temporarily shut down air conditioning, otherwise, once the engine overheating, affect the car already, also can affect the use of air conditioning. To choose the outlet wind Refrigeration and air conditioning wind blowing up best when, because of the cold air to the sink, the direction of the wind tests are best choice face gear. Don't choose the windshield of the block, because of the high temperature of windscreen, would offset a large refrigeration effect. For those owners of sweet atmosphere or ornamental, air-conditioning outlet is placed at will, in particular, note that doing so will the plug, the intake air circulation of the air conditioning system. In fact, sometimes as long as decoration, air inlet is not blocked, refrigeration effect will be different.