Porous membrane and mistake filtration cell spare

The utility model discloses a porous membrane and mistake filtration cell spare, the porous membrane contains the foamed metal after the compression of at least one deck. When regarding the foamed metal as filtering material, because its aperture is great, be difficult to satisfy the requirement of people to the air quality. The utility model discloses a foamed metal after the compression not only has high porosity, good formability and suitable aperture concurrently as the porous membrane, moreover the foamed metal easily acquire, with low costs, the preparation technology of porous membrane is simple. It contains the above -mentioned porous membrane of at least one deck to cross filtration cell spare. Because the formability of foamed metal is good, intensity is high, consequently can be with the filtration cell spare of crossing of the various shapes of porous film that correspond. Or according to the shape that has the multihole device now, the porous membrane that compress, the system of book is correspo