Cleanroom Classification Studies and Airborne Bioburden Particles in Operating Theatres

Hannu Salmela, Seppo Enblom, Satu Salo, Tuomas Attila, Jukka Vasara, Gun Wirtanen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific


    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.
    Original languageEnglish
    Title of host publication45th R3Nordic Symposium
    Subtitle of host publicationCleanroom Technology, Contamination Control and Cleaning
    EditorsGun Wirtanen, Satu Salo
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    ISBN (Electronic)978-951-38-8142-9
    ISBN (Print)978-951-38-8253-2
    Publication statusPublished - 2014
    MoE publication typeB3 Non-refereed article in conference proceedings

    Publication series

    SeriesVTT Technology


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