A. R. Yunita, S. Vegasty, Z. N. Izati, A. Massardi, T. Kusumaningsih, and M. Firdaus, “Development and Testing of a Portable Air Purifier with Chemical and UV-C Filtration for Virus and Pollutant Removal”, J.Ris.Kim., vol. 16, no. 2, pp. 1–13, Sep. 2025.