The cleaning of the filter can delay the service life

Many people have doubts that the filter is not directly used to replace the fixed time directly, is it possible? In fact, this is normal, but the result is that the filter will not function well for a long time, and cleaning filters often can make them like new ones. But we can clean up is normal air filter and air filter, air filter is a direct blow and dust with the hair brush above can, and patted the dust in the air filter direct blow to. So the filter can be used better but the time is long, if the filter paper of the air conditioner filter is discoloring, then it should be replaced. In addition, the air filter should be changed as well.