Air Flow Door Barrier for Airborne Infection Isolation Rooms Bård Venås, Anders Welde Vikan, Merethe Cecilie Lind and Trond Thorgeir Harsem E3S Web Conf., 111 (2019) 02063 Published online: 13 August 2019 DOI: 10.1051/e3sconf/201911102063