| 摘要 |
<p>The filtration unit according to the invention contains a filtering membrane (4), a cover (2) upstream and a base (3) downstream, welded together, characterized in that the filtering membrane has an elliptical shape. This elliptical shape facilitates the use for filtration and allows the unit to be reused without the formation of an air lock if the filtering membrane is partially hydrophobic. <IMAGE> <IMAGE></p> |
