| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an air cleaner that is compact without needing a large installation space, and has high air cleaning performance.SOLUTION: An air cleaner includes: a first cylindrical-shaped or square cylindrical-shaped cylindrical filter suctioning air into an internal space; a second cylindrical-shaped or square cylindrical-shaped cylindrical filter provided on the upper part of the first cylindrical filter and suctioning air into the internal space; a fan for suctioning air into the cylindrical filters; and a bypass passage that makes air suctioned to the inside of the first cylindrical filter pass through the second cylindrical filter.</p> |
