PROBLEM TO BE SOLVED: To provide a pandemic-responding ventilation system capable of preventing medical workers from air borne infection.;SOLUTION: The ventilation system 100 for ventilating a room interior 2 with use of a fan 12 sending air into the room interior 2 includes a HEPA filter 14 provided downstream of the fan 12 and an air curtain formation device 24 forming an air curtain C between the medical worker M and an infection suspected person S downstream of the HEPA filter 14 in the room interior 2. An ion generation element may be further provided downstream of the HEPA filter 14.;COPYRIGHT: (C)2012,JPO&INPIT
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