Risk Influence of Some Environmental and Behavioral Factors on Air Contamination in the Operating Room: An Experimental Study

Air contamination in operating rooms (ORs) depends on the conditions of room and activities therein performed. Methodologies air quality assessment ORs are often inadequately described scientific literature, time required for a change status is never taken into account. The purpose this study was to determine influence state presence human operators by implementing precise measurement protocol that also took account changes affect pollution. As main indicators pollution, bacterial load concentration airborne dust were measured. results showed that: use surgical masks OR did not significantly within distance 2 m; keeping doors open induce significant increase 5 μm particles while 10 positively affected; pollution measured with different from due two staff members, whether or they wearing masks. clarified role some factors ORs.