Which of the following can be used for medical air if properly sealed?

Reciprocating compressors are widely used in the production of medical air due to their effectiveness and ability to provide high pressure and flow rates. These compressors operate using a piston and cylinder mechanism, which can be sealed effectively to ensure that the air produced meets the required purity standards for medical applications. Proper sealing in reciprocating compressors prevents contamination and ensures that the air delivered is free of oil, particulates, and other contaminants that could compromise patient safety.

Medical air must adhere to stringent quality requirements as it is used for a variety of applications in healthcare settings, including oxygen delivery and pneumatic equipment. Reciprocating compressors can achieve the necessary compression and provide the volume of air required for these applications, making them a reliable choice when properly sealed.

The other types of compressors, while they can be used in various industrial applications, may not always be suitable or optimized for medical air without additional modifications or considerations regarding their design and sealing capabilities.