AIR FILTER AIR CONDITIONER. * Product's name: Air-conditioner filter * When dirty air-conditioner filter (cabin filter) reduces the intake air flow in outside air intake mode, making the car cool slowly even though the fan speed is at the highest level. Over time, the air filter becomes wet and dust accumulates, so it is easy to produce many bacteria, creating toxic gases. At that time, the air conditioner works, the air drawn through the air filter sweeps away mold and bacteria on the filter, leading to unpleasant odors. * Air filter after using for a long time, gradually reducing the air filter function, making more dust and dirt go in and stick to the indoor unit. After a period of time, a lot of dirt accumulates so that it is difficult for the air to contact the indoor unit, so it does not cool the maximum, leading to the air conditioner to work continuously, causing waste of fuel. * Normally, the manual or manual recommends that users change the air conditioner filter (cabin filter) every 15.000 - 20.000 km depending on the vehicle type. However, we should replace after 10.000 km because Vietnamese conditions are much smoother.