During driving, there are many harmful substances entering the car. It's about the emissions from passing cars, horses and dust. It is clear that inhalation of carbon monoxide and nitrogen oxide is not very useful. In order for harmful substances to enter the passenger compartment in a much smaller quantity and coil filter. This filter does not only protect the health of the driver and passengers. It restricts the release of harmful substances into the air conditioner and the heating radiator of the car. This is why other names are also known: filter heater filter or air conditioner filter. The regular replacement of the salon filter eliminates the need to permanently clean the heat sink.
The salon filter has become widespread in cars not so long ago-in the early 1990s. The first salon filters were almost identical to single engine air filters. Later, the filters evolved and became doubles. Such a device allowed the first layer not to skip dust and dust, and the other to fight with harmful microscopic particles. Another time later there were filters that had activated carbon in their structure. In addition, hybrid pubic filters have been developed, which not only prevent the penetration of dust, but also cope with the bacteria that might give an unpleasant smell in the salon.
Varieties
The salon filters have different modes of air purification:
Mechanical-the air passes through a material that represents a netting of thin fibres.
Adsorption is based on the ability of activated carbon to absorb different substances and smells. The porous surface of the coal allows it to draw substances like a sponge. In the production of filtering materials it is applied to a porous textile or synthetic basis. It is noteworthy that coconuts are used for the production of such coal, which is due to excellent indicators for the absorption of different substances. Its efficiency is several times higher than the standard Absorbent coal. Of course, absorbent, made from coconut, is worth more than charcoal.
Device
Consider the device of the most complex of the existing salon filters-multi-layered.
The upper layer of the filter has a paper basis and is needed for the detention of large particles larger than 10 microns. It contains an electrostatic layer with smaller particles. The next layer is the activated carbon layer. It prevents the penetration of gases and adsorption. The fourth layer serves as a kind of insurance and absorts the remaining harmful elements.
The column filter is located on vehicles near the air intakes, in front of the instrument panel. Typically, you can find it by removing the crate or opening a special door that is in it.
Operational issues
A column filter requires a regular replacement. In some car models, only the specialist can handle this task. But in most cases, replacing this filter by force of any motorist.
The life of the salon filter depends on the specific model of the car and its mileage. On average, paper filters change every 20 thousand kilometers, filters the coal "live" about 70,000 kilometers, and multilayer filters-40,000 kilometers.
It is not difficult to understand that the filter needs to be replaced. The main indicator is the significant weakening of the air flow into the passenger compartment. If the vehicle is equipped with an air conditioner, an unpleasant odour may be felt when filtered in the passenger compartment. The reason for their appearance is the resulting microbes in the filter layers.
