FILTER UNIT WITH A RIGID FILTER AND A FLEXIBLE COVER AND METHOD FOR MANUFACTURING SUCH A FILTER
The invention relates to a filter unit (100) and a method for manufacturing such filter unit (100). The filter unit is configured to filter a gas and/or particles out of a gas mixture, especially out of breathing air. A shell surface (M) of a rigid filter (1), for example, including activated carbon...
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Format: | Patent |
Sprache: | chi ; eng |
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