Abstract: A housing for filtering the intake air of a fuel cell, comprising a housing bottom part and a housing top part, which together bound off a space, the space being divided by at least one filter element into a crude air space and a clean air space, both the housing bottom part and the housing top part being coordinated with an air admission port to carry intake air into the space or out from the space, wherein the housing works steadily and reliably after a no-problem installation, wherein the filter element is at least partly embedded in a sealing compound.

Abstract: A filter arrangement for cleaning fuel cell supply air, including at least two filter layers, whereby a first filter layer is designed as a coarse filter and a second filter layer as a fine filter, wherein the second filter layer includes an electret filter material.

Abstract: Arrangement (1) for supplying a fuel cell (2) with recycled reaction gas (3), comprising a humidifier (4) with a first inlet (5) for the reaction gas to be humidifed (3) and a second inlet (6) for the moisture carrier (7), a filter arrangement (8) being pre-connected to the first inlet (5) and/or the second inlet (6).