| 摘要 |
In the purification method for a dental surgery, an anesthetic gas such as laughing gas and the dust generated by drilling a tooth or false tooth of the patient are changeably sucked either from a region close to the floor of the room, or from outside the oral cavity of the patient. The gas and dust are discharged outside the room. The apparatus comprises a stand (1) shaped in a substantially box-like form with casters fitted to the lower part of the stand so that it can move inside a dental consultation room. A suction port (4) in the stand communicates with the outside of the consultation room, that is, with a suction port (8) in a suction/dust collector (7) disposed outside a separating wall.
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