Effect of switching off unidirectional downflow systems of operating theaters during prolonged inactivity on the period before the operating theater can safely be used

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• 作者：A.A.L. Traversari ; BSc ; MBA^a ; ^{roberto.traversari@tno.nl} ; C. Bottenheft ; MSc^a ; S.P.M. van Heumen ; MSc^a ; C.A. Goedhart ; MSc^b ; M.C. Vos ; MSc ; PhD ; Prof^c
• 关键词：UDF system ; Recovery time ; Degree of protection ; Energy saving ; Air quality ; Operating theater ; Airborne particles
• 刊名：American Journal of Infection Control
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：45
• 期：2
• 页码：139-144
• 全文大小：369 K
• 卷排序：45

文摘

After starting up the system, the protected area achieved the required degrees of protection within 20 minutes (95% upper confidence limit). After starting up the system, a stable temperature difference was achieved within 23 minutes (95% upper confidence limit). Both findings lie well within the period of 25 minutes normally required for preparations before the start of surgical procedures. Switching off the ventilation system during prolonged inactivity (during the night and weekend) has no negative effect on the air quality in unidirectional downflow operating theaters during normal operational hours and can result in saving energy, up to 70% of the energy consumption compared with systems that function on full capacity continuously, and therefore costs.