A filter element of an air filter includes a main body and a substrate. The far
infrared emission powder substances are embedded at certain grain sized and at
certain ratio to the substrate, thereby forming the main body that is adapted in
form to various internal combustion engines. The resonance effect will be created
by means of the far infrared emission substances in the filter element of the air
filter, thereby making tiny the molecular cluster of water in the moisture-containing
air entering into the internal combustion engine for combustion, increasing the
molecular freedom, enlarging the contact surface of the oil gas with the air. Therefore,
it's easier that the oxygen-containing particles and the oil gas are evenly mixed
for reaching an optimal mixture ratio of the original design standard. As a result,
the combustion in the engine is complete, thereby effectively reducing the discharge
of the exhaust, regaining the original horse power of the internal combustion engine,
preventing the engine chamber from carbon deposit and prolonging the life of the
components thereof. Moreover, the vacuum degree of the vacuum pump can be raised
for stabilizing the braking efficiency.