| 摘要 |
An air, containing 2,000,000 or more mist particles per cubic foot with particle sizes of essentially not more than 0.5 microns, cleans the inside of a room. The air is sent to the room and then removed therefrom, thereby the mist particles carry dust, microorganism and the like therein out of the room. The mist-containing air is created as follows: Water is injected at a pressure of 0.3 to 5.5 kg/cm2 from a plurality of nozzles in order to cause the water to strike against the side wall of the water injection apparatus, the side wall being 10 to 150 cm away from the nozzles, and thereby form a large number of mist particles, and then circulating air therethrough to create said mist-containing air.
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