| 摘要 |
A filter material for purification of at least one essentially gaseous medium like tobacco smoke, from at least one pre-determined substance comprised of a pre-determined amount of expandable, cross combined polymer carrier material in the form of open-pored, three dimensional branches with at least one, in that respect, essentially evenly divided substance that is able to essentially selectively remove the named substance from that medium passing through the filter.<IMAGE> |
