Sagitar air filter is located in the air filter box above the engine. Remove the four screws with a Phillips screwdriver and take off the air filter cover. There is also a clip in it, which can be replaced with a new one. It is suggested that the replacement period should be once a year. If you often drive on foggy roads or construction sites, you should replace them in advance. Daily inspection can check its cleanliness, mainly depending on cleanliness. The related introduction is as follows: 1. Generally speaking, how often the filter element of an automobile air conditioner is replaced depends on the use of the automobile. Generally, urban family cars are replaced once every six months or once a year. 2. If there is a lot of dust on the road, more dust will enter the car, resulting in dirty air conditioning. Some users like to park under a big tree, or when there is a tree next to it temporarily, the fruit on the tree will fall on the air inlet of the air conditioning filter, which will also cause the air conditioning filter to be very dirty and need to be replaced in advance.