Corrigendum to ‘Operating room ventilation systems Recovery Degree, Cleanliness Recovery Rate and Air Change Effectiveness in an ultra-clean area’: [J Hosp Infect 122 (2022) 115-125, (S019567012100459X), (10.1016/j.jhin.2021.12.018)]

The authors regret that they have missed during the review process that the legend belonging to figure 6a, 6b, 6c and 6d is not shown. It is necessary to show the legenda otherwise the readers cannot interpret the graphs. Apologies that we missed it during the review process of the article. The legend belonging to figure 6 is:[Formula...

Operating room ventilation systems: recovery degree, cleanliness recovery rate and air change effectiveness in an ultra-clean area

Background: Entrainment test methods are described in most European standards and guidelines to determine the protected area for ultra-clean ventilation (UCV) systems. New UCV systems, such as temperature-controlled airflow (TcAF) and controlled dilution ventilation (cDV) systems, claim the whole operating room (OR) to be ultra-clean. However,...