| 摘要 |
<p>A flexible porous material formed into a flat plate is used as a porous material (2) carrying adsorbents for adsorbing foul-odor components in gas. Slits (2a, 2b) are alternately formed in front and back sides of this porous material such that the slits are formed to a midway along the thickness in a thickness direction and the porous material is then extended in a plane direction to be formed into pleats wherein a bottom portion of a slit becomes an angle portion thereof. When compared with a flat plate-like material, the pleated porous material formed as above has a filtering area remarkably increased to reduce the flow velocity of air passing through the filter, to thereby reduce remarkably the pressure loss. Therefore, since there is generated extra margin in attainment of a target pressure loss, it is possible to increase the volume of adsorbents carried by the porous material, thereby making it possible to improve deodorizing performance remarkably.</p> |
