Air Quality in Fitness Centers: Status and Improvement StrategiesGuozhu Li, Bin Luo, Maolin Liu, Haizhu Xue, Yongzhen Tian, Chong Meng and Linna XieE3S Web of Conf., 536 (2024) 01017DOI: https://doi.org/10.1051/e3sconf/202453601017