Enhancing displacement ventilation performance: Proposal of a new portable air purifying displacement ventilation unitAya Essa, Toshio Yamanaka, Narae Choi, Tomohiro Kobayashi, Noriaki Kobayashi, Miharu Komori, Nobuki Matsui, Tetsuya Okamoto, Takeshi Arakawa, Yuki Yamoto and Shougo OtakaE3S Web of Conf., 396 (2023) 01079DOI: https://doi.org/10.1051/e3sconf/202339601079