How the air filter comparison is good to use, there is really no conclusion, depending on the needs of the occasion to choose the appropriate equipment, the first can be considered from these aspects: the filtration precision is not high enough, if the precision is not enough, the dust and debris can enter the compressor, affecting the separator and even bearings and other components of the life of the filter; filter waterproofing function should be good, there is water in the air, and the rainy day humidity is much greater, the filter, once damp compressor will make the operation of the poor, when it is serious, will produce obstruction, and then also add power consumption.

Air filters are usually used for ventilation replacement gas and temperature control and conditioning projects, in addition to the effect of air purification, some also have the function of fire, moisture and insects.

Air filters are mainly divided into these types: primary filters use inertia to make large dust particles to separate out, the amount of dust filtered is high but the precision is not high, used in the initial filtration part of the pre-filtering effect; intermediate filters use synthetic fibre as the filter material, the dust removal power and the scale of the comparative size; and the filter can be made into a paper filter, the filter paper can be folded many times to filter small impurities, high-precision filters can be used for the aseptic warehouse project.