Which instrument is used to evaluate and test air flow and pressure differential?

The instrument specifically designed to evaluate and test air flow and pressure differential is a digital manometer. A digital manometer measures air pressure in a precise and user-friendly manner. This device allows technicians to accurately assess the pressure within a given environment, which is crucial for determining airflow characteristics and ensuring that systems such as HVAC are functioning properly.

When evaluating airflow, understanding differential pressure is essential because it helps to identify potential leaks or blockages in air movement pathways. Digital manometers typically provide real-time readings and often feature additional functionalities that make them suitable for various investigative tasks in the context of applied microbial remediation.

Other instruments mentioned in the choices have different applications or are not primarily focused on airflow and pressure differential. For example, an analog manometer, while it can measure pressure, may not provide the same level of precision or ease of use as a digital manometer. A digital barometer measures atmospheric pressure rather than pressure differentials related to airflow in a controlled environment, and a pressure gauge may indicate pressure, but it typically does not have the specificity needed to assess airflow and pressure differentials in the same way a digital manometer does.