2024-03-11

Safety and quality of compressed air and gas in medical applications


Compressed air and gas are essential to the operation of numerous healthcare facilities. Medical facilities are commonly used for breathing, sedation, and operating medical devices, and medical facilities must rely on these tools to save lives and reap therapeutic benefits. The quality of the air and gas produced by the institution's compressed air system is critical to its efficacy in promoting positive outcomes for patients.

 

Contamination of compressed air/gas, whether from ambient air, the air compressor itself or the piping system, is the responsibility of medical institutions.

 

The quality of the air and gas produced by compressed air systems in healthcare facilities is critical to their efficacy in promoting positive outcomes for patients.

 

In order to prevent water contamination, air dryers are commonly used in medical equipment to remove water from compressed air/gas, so the dryer must be designed to provide air with a maximum dew point of less than 32 °F at a pressure of 50-55 psi. Although freeze dryers are effective dryers in many applications, they are often unable to provide air below a dew point of 35 °F, especially in the low flow conditions common in hospitals, because the condensed water cannot be effectively removed by centrifuges. Dryer systems are often redundant and require a duplex system to prevent water contamination in the event of a malfunction. Desiccant The desiccant can release particles into the compressed air system due to the continuous movement/friction of the desiccant as the air flows through it to generate desiccant dust. This illustrates how the compressed air system and air treatment itself can create pollutants that must be continuously monitored and controlled.

 

A series of filters may be used to remove particulates originating from the ambient air or the air compressor itself. It is important to note that point-of-use filters are essential to ensure that compressed air/gas is free of particles when used. Condensed oil, another contaminant analyzed by validated testing, may come from inside the air compressor, and/or from the ambient air when an oil lubricated system is used. To remove the condensed oil, a coalescing filter may be used. For gaseous pollutants, such as volatile hydrocarbons and carbon dioxide, activated carbon filters/towers and catalytic converters can be used, respectively.

 

Air treatment can not only eliminate pollution, but also make the compressed air system work more efficiently, thereby saving money by extending the service life of the air compressor and increasing the operating speed of the system. The use of air handling and air compressor maintenance in combination with compressed air/gas testing allows medical institutions to ensure the quality of this utility and therapeutic equipment.

 

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