INTER-PERSON INTERACTION DEVICE, GATEWAY WITH ASEPTISE AIR CURTAIN AND ITS APPLICATION TO A SPEAKER. An interaction device (1) between two people (A, B) each located in two separate rooms (P1, P2) of a building (BT) is arranged in a partition (CL) separating the rooms (P1, P2 ). The device comprises: - a frame (8) defining a window (9) open to the rooms (P1, P2) and allowing two people (A, B) to interact; - a suction part (AS) comprising a suction mouth (2), a suction motor (3), a suction disinfection module (4), an air curtain diffusion module (6 ) which are coupled together by at least one inlet pipe (7) so that air sucked in (AI) by the suction mouth (2) under the action of the suction motor (3) is sucked in one of the two rooms (P1, P2), or both rooms (P1, P2) or from outside the building (BT) to be disinfected by the suction disinfection module (4) which supplies sanitized air (AA) to the air curtain diffusion module (6), the air curtain diffusion module (6) generating an air flow which sweeps the window (9) across its entire width from top to bottom by forming a curtain of sanitized air (RI) capable of capturing contamination emitted from one of the rooms to the other room through the window (9); and- an exhaust part (EV) comprising an air curtain recovery module (10), an exhaust disinfection module (12), a vacuum motor (13) and an exhaust outlet (14). ) which are coupled together by at least one exhaust pipe (15), the exhaust disinfection module (12) treating the curtain of potentially contaminated air (AC) recovered at the bottom of the window (9) by the module air curtain recovery (10) and evacuated in the form of exhaust air (AO) sanitized by the exhaust outlet (14) under the action of the vacuum motor (13) to one of the two rooms ( P1, P2), or both rooms (P1, P2) or outside the building (BT). Figure for the abstract: Figure 2
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