Szczęśniak, S. 2020. Newly introduced changes in the European standard PN-EN 13053:2020-05 Ventilation for building – Air handling units – Rating and performance for units, components and sections. Overview of the main changes. Instal. 12 (Dec. 2020), 31–38. DOI:https://doi.org/10.36119/15.2020.12.4.