The filter housing is round and consists of filter pot and filter cover. The filter bowl contains a special thread, the filter cover is open toward the Einatemseite. There is a filter bed with active carbon, this is due to the housing and internal sieves is fixed. The particle filter is positioned in front of the gas filter part einatemseitig It consists of a component and has bar folds. A gas-tight connection between the particle filter and the housing is established. The filter is water vapor sealing in a polythene bag welded.
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