| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: existing cleaning tools and an existing air conditioning system cannot drastically remove dust.SOLUTION: A circulation duct is installed on an indoor floor surface. Air is directed into a room from an indoor air discharge opening (3), and an elevation airflow is generated to scatter dust about to be accumulated on the floor surface (15). Since a discharge cycle is irregular, the dust is drifted to a specific part without being accumulated. The dust floating in the air is finally recovered by an air cleaner and the like. |
