| 摘要 |
Filter, in particular for the purification of the air sent into the cabin for passengers of a vehicle, of the type made up of a support 12 made of open-cell polyurethane foam, to which adsorbent particles are attached by means of an adhesive, and in which the support 12 carrying the adsorbent particles is folded into a zigzag, characterised in that the polyurethane foam of the support 12 has a porosity of between 20 and 60 pores/inch (0.8 to 2.4 pores/mm) and in that the adsorbent particles have a mean size, that is to say a mean diameter, of between 0.1 and 0.8 mm. <IMAGE>
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