“…As was stated by Wu et al even the transmission of viruses induced by air infiltration cannot be neglected, [ 23 ]. Besides the position of air supply and exhaust, the obtained ventilation performance and effectiveness depend on the type of installed air terminal device as well, [ 4 , 7 , 24 , 25 ]. Xu and Liu drew attention to personalized ventilation systems, which may serve as a possible solution in some building types to reduce the infection probability, [ 26 ].…”