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为解决换床单引起的病室空气污染问题，我们在换床单时同步进行高效超声喷雾，其喷雾量是一般超声雾化器的６倍以上，结果喷雾组换床单后细菌、飘尘增值明显低于对照组，经统计学处理差异非常显著（分别为Ｐ＜０．０５、Ｐ＜０．０１）；喷雾组中有７０％的样本，换床单后空气中细菌、飘尘量甚至比换床单前还低。说明高效超声喷雾既能有效地控制换床单所致的病室空气污染，又能使病室空气更加清洁。此外，高效超声喷雾还具有作用快、对人体有益无害、不易浸湿物品等优点。据查国内暂无此类报道。
In order to solve the problem of air pollution in the wards caused by changing bed sheets, we simultaneously performed high-efficiency ultrasonic spraying when changing the sheets, and the spray volume was more than 6 times that of general ultrasonic atomizers. As a result, the bacteria and dust-laden dust value in the spray group was significantly lower than the control. In the group, the difference was statistically significant (P<0.05, P<0.01, respectively); in the spray group, there were 70% of the samples, and the bacteria and dust in the air even after changing the sheets were even lower than before changing the sheets. . This shows that the high-efficiency ultrasonic spray can effectively control the air pollution in the wards caused by changing the sheets, and can also make the air in the sickroom more clean. In addition, high-efficiency ultrasonic spray also has the advantages of quick action, beneficial and harmless to the human body, and difficult to wet articles. According to the investigation, there are no such reports in the country.