Hospital environments are associated with a high risk of infection. As plasma-treated hydrogen peroxide mist disinfection has a higher disinfection efficacy, we tested the efficacy of plasma-treated hydrogen peroxide mist disinfection on several surfaces in various hospital environments. Disinfection was performed in 23 rooms across different hospital environments, including hospital wards, outpatient departments (OPDs), and emergency rooms. A total of 459 surfaces were swabbed before/after disinfection. Surfaces were also divided into plastic, metal, wood, leather, ceramic, silicone, and glass for further analyses. Only gram-positive bacteria were statistically analyzed because the number of gram-negative bacteria and mold was insufficient. Most colony-forming units (CFUs) of gram-positive bacteria were observed in OPDs and on leather materials before disinfection. The proportion of surfaces that showed a percentage decrease in CFU values of more than 90% after disinfection were as follows: OPDs (85%), hospital wards (99%), and emergency rooms (100%); plastic (97%), metal (83%), wood (84%), leather (81%), and others (87%). Plasma-treated hydrogen peroxide mist disinfection resulted in a significant decrease in the CFU values of gram-positive bacteria in various environments. Plasma-treated hydrogen peroxide mist disinfection is an effective and efficient method of disinfecting various hospital environments.

中文翻译：

---

等离子处理过的过氧化氢雾消毒在各种医院环境中的有效性

医院环境与高感染风险有关。由于等离子处理过氧化氢雾化消毒具有更高的消毒功效，我们在各种医院环境中的多个表面上测试了等离子处理过氧化氢雾化消毒的功效。消毒在不同医院环境的 23 个房间中进行，包括医院病房、门诊部 (OPD) 和急诊室。消毒前后共擦拭了 459 个表面。表面也分为塑料、金属、木材、皮革、陶瓷、硅胶和玻璃以供进一步分析。由于革兰氏阴性菌和霉菌的数量不足，仅对革兰氏阳性菌进行了统计分析。大多数革兰氏阳性菌的菌落形成单位 (CFU) 在消毒前在 OPD 和皮革材料上观察到。消毒后CFU值下降百分比超过90%的表面比例如下：OPDs（85%）、医院病房（99%）和急诊室（100%）；塑料 (97%)、金属 (83%)、木材 (84%)、皮革 (81%) 和其他 (87%)。等离子处理过的过氧化氢雾消毒导致革兰氏阳性菌在各种环境中的 CFU 值显着下降。等离子处理过的过氧化氢雾化消毒是对各种医院环境进行消毒的有效方法。和急诊室（100%）；塑料 (97%)、金属 (83%)、木材 (84%)、皮革 (81%) 和其他 (87%)。等离子处理过的过氧化氢雾消毒导致革兰氏阳性菌在各种环境中的 CFU 值显着下降。等离子处理过的过氧化氢雾化消毒是对各种医院环境进行消毒的有效方法。和急诊室（100%）；塑料 (97%)、金属 (83%)、木材 (84%)、皮革 (81%) 和其他 (87%)。等离子处理过的过氧化氢雾消毒导致革兰氏阳性菌在各种环境中的 CFU 值显着下降。等离子处理过的过氧化氢雾化消毒是对各种医院环境进行消毒的有效方法。