The objectives of the study were to evaluate cleanliness classes and airborne particle concentrations in typical operating theatre environments in Finland. At rest the cleanliness classes of the theatres fulfilled the guiding reference values when there was overpressure in the theatres. At operation the cleanliness classes were between ISO 7 and ISO 9. The airborne bioburden samples analysed showed that >85% of the sites evaluated had air of either good or inadequate quality. The results and suggested hygiene limits are benchmarked with methods and qualification limits of a standard draft prepared by the European hospital ventilation working group CEN/TC 156/WG 18.
|Title of host publication||45th R3Nordic Symposium|
|Subtitle of host publication||Cleanroom Technology, Contamination Control and Cleaning|
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Publication status||Published - 2014|
|MoE publication type||D3 Professional conference proceedings|
Salmela, H., Enblom, S., Salo, S., Attila, T., Vasara, J., & Wirtanen, G. (2014). Cleanroom Classification Studies and Airborne Bioburden Particles in Operating Theatres. In 45th R3Nordic Symposium: Cleanroom Technology, Contamination Control and Cleaning (pp. 107-115). VTT Technical Research Centre of Finland. VTT Technology, No. 168