One of the principle causes to change
cabin filter in your car is the fact that during some period of time
on the surface of filtering material are starting to grow and breed
lots of bacterias and microorganisms, various kinds of fungi. It occurs
because filtering material is located in a warm and damp place without
ultra-violet rays entries. The fastest growth is occurs on the surface
of a usual synthetic material (NEVSKY
FILTER plant never use such kinds of materials).
Our
company uses only special filtering materials
with antibacterial treatment. But at the same
timethe material with antibacterial treatment cannot restrain microflora growth infinitely long. Sooner or later this material “surrenders”. Harmful microorganisms get into the cabin of the car through ventilation duct - that is especially harmful to older persons and children, and also for people with weak immunity.
We appreciate
our name and reputation and work on long prospect and never try to save
on consumer's health. We will always use only special materials for
these purposes. Owing to that our products may be a bit more expensive
then similar production of other manufacturers, including Asia, East
Europe, and also some other Russian manufacturers.
Antibacterial material manufacturing
Manufacturing of the present qualitative antibacterial material include various ways. The most popular and most developed way – a
two-staged manufacturing.The first stage – material manufacturing (without carbon filling). Then the ready cloth passes the second stage – putting into the chloric solution. Then the cloth is being dried in the special tunnel furnaces (the moisture evaporates). Thereby on the microfibres particles of chlorine are left which destroy microflora (which can grow on a surface of cabin filter).
Certainly, second stage demand more power that directly leaves impact on the net cost of material.
If to exclude the second stage of processing it is possible to receive rather cheap material, and, consequently - cheaper cabin filter which in certain conditions will be more dangerous to health of the person.
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NEVSKY
FILTER plant uses only a material with two-staged processing.
Certainly, there are also other technologies of an antibacterial material production, but in these article we will not consider them, as each company has it's own know-how. |
Material with activated carbon - what does it look like?
Carbon
itself is made from coconut shells, because only coconut carbon has
the highest index of absorption various particles from environment.
This index exceeds data of the standard absorbed carbon.
NEVSKY FILTER plant
never use substitute and simulate materials.
Material with activated carbon could have different
density. Density could vary from 150 g/m2 till 500 g/m2, even till
800 g/m2. Otherwordly, thickness of filtering material could be different
and it influences it's air permeability.
Installation of this or that material depends on automobile's ventilation
system design, ventilator power and also auto manufacturer's requirements.
Unfortunately, lots of cabin filters manufacturers don't take into
consideration these terms and install in their products improvised
material. For example, if put into ventilation filter carbon material
with density 500 g/m2 (in case such ventilation will not able to blow
it through), the efficiency of heating and conditioning systems will
become lower ,and vise versa - them in your car you will feel heightened
noisiness.
Carbon filter. Processes of absorption and desorption.
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| Absorption (lat. absorptio)- capture substances from a gas mixture. | |||
 The area of a surface of 3 grammes of the activated carbon is more than football ground area! |
Carbon
absorbent which is between two layers of a synthetic material,
besides catching of various particles, dust and the other pollution
which are in air , partially traps also poisonous blowouts from
exhaust systems of passing cars. Thus, than the lower passing
through a material stream and the more it contain carbon, the
higher clearing factor. |
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| Carbon
material gradually incorporates and accumulates harmful substances
like a gas mask. Real life cycle of the filter depends on many
factors but ,if to abstract and speak only about carbon absorption
- in the filled with smoke cities it can reach the maximum on
10 000 km, and sometimes even 6 000, especially it is actual in
cities with the big intensity of automobile movement, with the
big traffic. And vise versa, if the car is maintained in suburb,
on well blown roads carbon can serve up to 20 000 km and much
longer. |
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Desorption (de - prefix, means "removal", and lat. sorbeo, means "adsorb") - removal of the adsorbed substance from an adsorbent surface. Desorption – the most unpleasant process during usage of cabin filters with carbon filling. It occurs, when carbon could not accept in itself poisonous blowouts any more. Unlike absorption process, this process does not stretched in time, and there is a sharp blowout of poisonous substances in a automobile cabin. There is a chemical reaction natural to carbon. Certainly, carbon is not released completely from harmful substances as it could occur under other external conditions, for example, at strong heating or at direct hit of ultraviolet on carbon. And the cycle of accumulation and blowout of harmful substances repeats again. |
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| As a conclusion we can say that carbon filter at equal values of air permeability is more preferable than the standard antibacterial filter. But in this case carbon filter demands more attention and should be replaced in time. Be vigilant and don't forget that timely replacement of carbon filter will protect your health and yours relatives!
NEVSKY
FILTER wishes automobile owners health and safety on the roads!
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