Using portable air cleaners to restrict airborne transmission in an open plan office – a field measurement and CFD studySimo Kilpeläinen, Muhammad F. Ejaz, Alo Mikola, Martin Kiil, Jarek Kurnitski and Risto KosonenE3S Web Conf., 672 (2025) 07017DOI: https://doi.org/10.1051/e3sconf/202567207017