As airflow increases, the differential pressure drop across a filter will increase proportionally to the flow rate squared. As the filter loads up, the relationship between pressure drop and airflow ...

The AST5400 differential pressure sensor can be used to measure differential pressure across a filter, monitor level in a sealed or vented tank, or calculate flow across an orifice plate.

Cleanrooms are critical in situations where hygiene is necessary. To maintain these rooms, air pressure must be tightly controlled, this is where a differential pressure sensor comes in.