運用噴霧式H2O2作為醫院環境消毒之探討

Evaluation of the Use of mist spray H2O2 for Environmental Cleaning and Disinfection in Hospital Settings

預防醫療照護相關感染是醫療機構及世界衛生組織重要的議題，而醫院環境的清潔程度與醫療照護相關感染有著一定的相關性，因此要減少環境中的致病菌，環境清潔消毒是十分重要的。以傳統人工方式消毒並無法有效維持反覆污染的環境，現有以H2O2噴霧式消毒劑之技術來清潔致病微生物的方式，也因其噴霧顆粒小、可接觸所有表面，近來此方式已逐漸被重視。其自動化之消毒方式較傳統消毒方式更能有效清除環境中之抗藥性細菌，如methicillin-resistant Staphylococcus aureus（MRSA）及C. difficile。噴霧式H2O2相較於其他具有毒性、對環境有危害的消毒劑提供另一個選擇；也因可有效清除密閉式環境如隔離病房、乾淨的房間、儀器、及其他被致病微生物汙染之地方，因此未來噴霧式H2O2是否可進一步擴大使用作為環境清潔消毒的運用值得期待。

Prevention of health care-associated infection is an important issue for healthcare facilities and the World Health Organization. Correlations exist between the cleanliness of hospital environments and health care-associated infections. Therefore, cleaning and disinfecting the environment to reduce pathogens is highly important. Conventional manual cleaning could not effectively disinfect the repeatedly polluted hospital environment. Dry mist or vapor cleaning in which disinfectant H2O2 is sprayed to create small particles that could reach to all surfaces is an emerging method of cleaning to eradicate environmental pathogens effectively and has now been more emphasized. The automated disinfection program using small-particle H2O2 is far more effective for cleaning the environment, especially the drug-resistant bacteria such as methicillin-resistant Staphylococcus aureus and Clostridium difficile, than manual cleaning. Compared with other toxic, environmentally hazardous cleaning agents, H2O2 provides an alternative and can effectively clean and sterilize closed environments such as isolation wards, clean rooms, equipment, and other places contaminated with pathogenic microorganisms. The application of H2O2 dry mist or vapor could be further expanded to include other environmental cleaning and disinfection.