Steam requirements for hospital cleaning and humidification

　　As a heat carrier and heat transfer medium, steam is widely used in various processes and applications requiring heating. In our common sense, steam is evaporated by heating water, so we think that steam is colorless, odorless, clean and non-toxic, which in fact is true for most applications.

　　But in some applications, such as biopharmaceutical, food and beverage, clean room, medical sterilization, kitchen cooking, etc., steam is graded. Different grades of steam are used in different processes in different industries due to differences in quality and purity, production methods, and process control.

　　Different from our general understanding, different grades of steam have different characteristics. The temperature and relative humidity of the clean room of pharmaceutical companies should be adapted to the production requirements of drugs, so as to ensure the production environment of drugs and the comfort of personnel. Since steam can inhibit the growth of microorganisms, it is recommended for humidification. According to the relevant provisions of cGMP, the additives in humidified steam may have adverse effects on the product or process. Therefore, the steam humidification system must be verified to ensure that the system does not contain additives outside the catalogue.

　　The quality assurance of clean steam requires many considerations. From water source, pipeline material to equipment material, design, control and other aspects can be guaranteed, clean steam can be used for humidification applications where the product is not exposed to the air, if the humidified steam affects the quality of intermediate products or final products, it needs to be used Pure steam.

　　In the humidification of hospital operating rooms, there are clear requirements and regulations. Experience has shown that traditional industrial steam humidification is increasingly unsuitable for strict medical humidification. It is worth noting that the clean steam system for humidification in the hospital operating room is relatively scattered, and the use of centralized supply of clean steam can often only ensure the qualification of the heat source. The clean design, installation and management of the transmission and use systems are equally important.

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