Which sterilization method has a short cycle time of 28-38 minutes?

The method of sterilization known as gas plasma is recognized for its efficient cycle time, typically lasting between 28 to 38 minutes. This technique utilizes low-temperature hydrogen peroxide vapor, which is then energized to produce gas plasma. This sterilization method is particularly advantageous for heat-sensitive medical instruments and devices that cannot withstand traditional sterilization methods such as steam.

The relatively short cycle time allows for rapid turnover of instruments, making it a practical choice in busy healthcare settings where quick availability of sterile instruments is critical. Additionally, gas plasma sterilization does not leave toxic residues, as the byproducts of the process are benign, further enhancing its safety for both users and patients.

Overall, gas plasma stands out in the sterilization landscape for its quick cycle duration, effectiveness against a wide range of organisms, and compatibility with sensitive materials, which is why it is the correct answer in this context.