What device is used to measure the humidity level?

Study for the Sterile Processing Technician Exam. Review flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your certification exam!

The correct device used to measure humidity levels is a hygrometer. A hygrometer is specifically designed to assess the moisture content in the air, providing readings that indicate relative humidity. This information is crucial in various settings, such as sterile processing areas, where maintaining the appropriate humidity level is essential for the efficacy of sterilization processes and the preservation of instruments.

In contrast, a barometer is used to measure atmospheric pressure, which can inform about weather changes but does not provide information on humidity levels. A thermometer measures temperature only, which, while important in many contexts, does not relate directly to humidity. Finally, a hydrometer measures the density of liquids and is used primarily to determine the specific gravity of a liquid, not air humidity. Thus, the hygrometer stands out as the only instrument among the choices that directly measures humidity.

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