| 摘要 |
<p>A filter assembly particularly for the filtration of compressed air and other compressed gases as well as for air and liquids is formed with a pair of porous support jackets having a filter element located therebetween and defining an inlet side. The filter element is composed of a plurality of layers of filter material having different porosities with the finely porous layer being covered, at least on its surface facing the inlet side of the filter assembly, by a less finely porous layer and the filter element is particularly characterized in that it contains active charcoal.</p> |
