M. Szczotko, I. Orych, Łukasz Mąka, and J. Solecka, “Evaluation of the efficiency of different types of air purification devices in scope of reducing the total number of bacteria and fungi in indoor air in real conditions”, Instal, no. 1, pp. 18–26, Jan. 2023, doi: 10.36119/15.2023.1.3.