What term describes the rated flow of air through a filter at a specified pressure drop?

The term that describes the rated flow of air through a filter at a specified pressure drop is filter capacity. Filter capacity is a critical concept in air filtration because it indicates how much air can pass through the filter effectively while maintaining a certain level of resistance, which is measured as pressure drop.

Understanding filter capacity is essential for professionals in the field, as it helps determine the suitability of a filter for specific applications. A filter with a high capacity may be required for systems with greater airflow needs, ensuring that air can be filtered efficiently without overloading the system.

Filtration efficiency, on the other hand, refers to the ability of the filter to remove particles from the air, while airflow rate is simply the volume of air passing through the filter, not necessarily related to pressure drop. Pressure drop value pertains to the resistance experienced by the air as it flows through the filter, but does not define the capacity of the filter itself.