A dental extracellular droplet attracting device is provided in combination with a medical chair, comprising a main body, a fixing member and a supporting member. The fixing member is arranged on the front side of the medical chair, and the supporting member is pivotally connected to the fixing member at one end, and the other end extends to the vicinity of the patient above the medical chair. The support member has an internal passage therein； and the main body is provided with a suction pipe which extends into the interior of the chair and extends from the front side of the chair and then penetrates into the internal passage to extend to the vicinity of the patient. According to this, the creation can be moved around the front side of the chair by the pivoting support member with the suction pipe, and the doctor's diagnosis and treatment work is not hindered.一種牙科用口外飛沫吸引裝置，其與一診療椅搭配設置，包括有一主機、一固定件及一支撐件。固定件設於診療椅之前側，支撐件以一端樞接固定件，另一端則延伸至診療椅的上方患者附近。支撐件內部設有一內部通道；而主機設有一吸沫管路，其伸入診療椅的內部，並自診療椅之前側伸出，再穿入上述之內部通道而延伸至患者附近。據此，本創作可藉由樞擺支撐件而帶著吸沫管路在診療椅的前側周圍移動，不妨礙醫師的診療作業。
