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MAHLE cabin filters: clean air, safe driving
MAHLE cabin filters reliably supply the driver and passengers with clean air. They reduce dust on the dashboard and in the cabin, and avoid dangerous fogging of the windows. They also reduce the load on the blower and protect the HVAC system from contamination. Irreparable damage can occur to the air conditioning or heating system. The replacement intervals recommended by vehicle manufacturers should therefore always be followed.
Who's in the car, needs clean air to ensure a safe and concentrated participation in the traffic–and to feel comfortable. The air we breathe is, however, often loaded with harmful and allergenic substances and odors, which conventional filters can not eliminate.
The solution: Our world first CareMetix with S5 broadband technology—5 layers provide 5-fold protection
Traffic jams, tunnels, large construction sites, water treatment plants, and freshly fertilised fields—all these are sources of unpleasant, pungent ammonia and sulphur gases, which, until now, you have been exposed to in your car. The new CareMetix cabin filter provides protection through S5 broadband technology—and removes precisely these unpleasant odors.
And it works: not just in the laboratory, but also on the road—tried and tested in everyday conditions
Airborne pollen in the spring is a source of discomfort for more and more people—causing headaches, watery eyes, runny noses, and irritated skin. Protect yourself whenever you’re in your car: with CareMetix. The innovative cabin filter with S5 broadband technology provides 5-fold protection—even against allergens that conventional filters can’t block
Due to exhaust gases coming from the vehicle in front, the air at the centre of the roadway is up to six times more polluted than at the side of the road. With the innovative CareMetix cabin filter, the vehicle cabin remains almost entirely free of fine particulates, tyre debris, brake dust, and exhaust gases. The S5 broadband technology also protects against micro-particulates and diesel soot—and preserves the sensitive components in the HVAC system from premature wear.
Mildew and mould spores are everywhere—including in the air we breathe. They spread rapidly, particularly in wet and warm weather. That’s why you need a cabin filter that not only protects you against mildew and mould spores, but also prevents mould build-up on the filter itself. CareMetix with S5 broadband technology is fully effective against mould—and therefore makes an essential contribution to the well-being of all passengers.
Some bacteria can make us ill. With its highly effective S5 broadband technology, CareMetix removes harmful micro-organisms and prevents them from spreading throughout the filter material, thanks to its anti-bacterial coating. The innovative filter thus protects the health of all passengers—in every season.
So that you and your loved ones breathe in only goodness: ask for CareMetix. During your annual filter replacement or at least every 15,000 kilometres travelled—for noticeably improved well-being in your car.
When a vehicle is in operation, more than 100,000 litres of air are swept into the cabin every hour. The only barrier against pollution: the filter in the ventilation system
| Filter type | Activated Carbon Filter |
| Filter type | with anti-allergic effect |
| Filter type | with antibacterial action |
| Basic version (Art. No.) | LA 923 |
| Basic version with active carbon (Art. No.) | LAK 923 |
| Length [mm] | 216,0 |
| Width [mm] | 200 |
| Height [mm] | 35,0 |
| Net Weight [g] | 203 |
| Packaging length [cm] | 21,0 |
| Packaging height [cm] | 22,00 |
| Packaging width [cm] | 4,00 |
The fan blows up to 100,000 litres of air into the cabin in one hour of driving. Without cabin filters, all kinds of pollutants, smog, ozone, exhaust gases, unpleasant odours, fine particulates, or pollen can enter the passenger cabin. The concentration of pollutants can be up to six times greater than at the edge of the road due to the differential pressure in the driving vehicle. Everyone knows what this means for the health, well-being, and concentration of the driver—which is why responsible manufacturers equip their passenger cars and commercial vehicles with cabin filters.
If the filter is not replaced on time, moisture builds up in the captured dirt. The filter becomes a feeding ground for bacteria and mould, which spread into the lines of the HVAC system, where they give off unpleasant odours and unhealthy emissions.
MAHLE Original prefilters are made either of polyester foam or polyester non-woven. The LAP is typically located upstream of the particle or combination filters and captures coarse dirt. This extends the service life of the cabin filter without (LA) and with activated carbon (LAK).
The polyester foam is resistant to ozone, hydrolysis, ageing, and temperatures up to 90°C, and is plasticiser- and CFC-free. The material is recyclable and can be easily incinerated. The polyester foams have uniform pores that are created in a special process. MAHLE typically use foam materials of the class PPI 30 (pores per inch), as extensive lab testing has demonstrated that this pore size is the best compromise between service life and coarse particle separation.
MAHLE non-woven mats made of polyester are non-flammable and resistant to hydrolysis, ageing, and temperatures up to 100°C. The material is free of silicone, plasticisers, and CFC, recyclable, and suitable for incineration.
Activated carbon consists mostly of carbon (typically > 90%) with a very porous structure. The pores are connected to each other like in a sponge. Two grams of activated carbon contain approximately the surface area of a football pitch—a standard filter with about 200 g of carbon therefore has an filter surface area of about 100 football pitches.
There are particulate filters for coarse (LAP) and fine particles (LA) and combination filters (LAK) with an activated carbon layer. Coarse filters protect the filter surface of a downstream fine particle filter or combination filter against clogging with large particles. Particulate filters for fine particles protect against fine particulates, pollen, industrial dusts, and other tiny particles that can enter the lungs. Combination filters have an additional activated carbon filter—they absorb both odours and toxic gases such as nitrogen oxides as well as petrol and fertilizer fumes, and break down up to 99% of ozone.
MAHLE makes pure activated carbon filters that supplement conventional cabin filters for some types of vehicles. MAHLE deliberately avoids the use of solvent-based adhesives in the manufacture of its combination filters. The individual filter layers are bonded by heating.
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