Quality criterias for cabin filters
Filtration efficiency of the FILTER+ cabin filter
FILTER+ cabin filter
Quality testing: Filtration efficiency
An important quality criterion for a cabin air filter’s performance is its filtration efficiency or its capacity to filter out particles. Bosch had its FILTER+ and a similar OE filter tested by the independent institute Flatech GmbH, Germany. Measurements were made in accordance with ISO 11155-1.
Particulate matter test:
Bosch’s FILTER+ offers highly efficient protection against respirable particulate matter (particle size < 2.5 μm), surpassing even a similar OE filter.
Pollen test (ragweed and birch):
Bosch’s FILTER+ provides the same high degree of efficient protection against allergens as a similar OE filter.
*find graphs and more information in full article below
Bosch recommends that you change the cabin filter of your car once a year or every 15,000 km.
Consequences of a clogged Cabin filter / pollen filter:
- Reduced vision from fogged windows, resulting in reduced safety
- Increased pollutant concentration inside the vehicle
- Allergic reactions, e.g. sneezing
- Reduced cooling capacity of the air-conditioning system resulting from deposits on the evaporator