| 摘要 |
A high pressure water stream( 14 ) is discharged onto a surface to be cleaned. An ozone/water stream( 16 ) is discharged on the same surface for sanitizing the surface. The high pressure water and ozone/water streams( 14,16 ) are discharged simultaneously along closely adjacent paths that are either parallel (FIG. 3 ) or concentric (FIG. 2 ). The water pressure is at least about 100 p.s.i. and is preferably between 100 p.s.i. and 2000 p.s.i. The nozzles that discharge the streams ( 14,16 ) maybe movable relative to the object(s) that receives the high pressure water and ozone/water (FIG. 1 ). Or, they may be fixed and the object may be movable relative to them (FIG. 4 ).
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