With the improvement of the use requirements, the end of the operating room of the modern hospital is equipped with high-efficiency filters to achieve the purpose of purification, but there are often problems in the operation of the operating room for a period of time when the bacteria exceeds the standard, and the problem is rooted. Pointing to the high-efficiency filter, I now explain to my friends the main role of a high-efficiency filter, so that friends can understand that high-efficiency filters are not versatile.
High efficiency filter filtration principle:
The dust particles in the air move in inertial motion with the airflow, or move irregularly, or be moved by some field force. When moving dust particles hit the filter, the attraction between the particles and the high-efficiency filter surface causes it to adhere to the filter.
The high-efficiency filter can filter dust of 0.3μm in air up to 99.99%. Therefore, the above principle, the high-efficiency filter only has the function of filtering dust; it does not produce microorganisms, nor does it function to filter microorganisms.
When replacing the high-efficiency air filter, it is best to let the experimenter in use (pre-inquiry about the bacteria used in the experiment). The hand and body are not allowed to operate. The operator must wear a gas mask and rubber gloves. The removed filter should be sealed immediately into the bag and placed in the carton. The used mask and gloves are also treated and burned together. When installing a new filter, do not put your head and body into the device, and behave with great care. In addition to the use of high-efficiency filters to remove bacteria, the exhaust can also be achieved by incinerators. It is absolutely unreliable to sterilize exhaust air with UV lamps.
However, half of the bacteria used in the operating room for a period of time may be due to high-efficiency filters, or other management problems. For example, the timing cleaning is not up to standard, and only by replacing the high-efficiency filter. Find the root cause of the problem.
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