| 摘要 |
<p>PURPOSE:To provide a filter unit capable of decreasing pressure loss more than the conventional one. CONSTITUTION:In the filter unit provided with a filter for coarse dust 3, a filter for gas adsorbent and a filter 2 for removing suspended dust in this order from the upstream side of an air flow passage, the filter for gas adsorbent is composed of a synthetic resin foamed body 1 having continuous pores and supporting a gas adsorbent for removing a gaseous component in a passing air.</p> |
