This document provides information on FEC's test rig models for testing cleanable air filter media. The FEC-111A rig allows standardized testing of filter media performance parameters like pressure drop curves, residual pressure drop curves, gravimetric separation efficiency, and loading capacity according to standards like VDI 3926, ISO 11057, and ISO 5011. The rig uses a dust feeder to generate aerosols and measure pressure drop, particle concentrations, and filter weight before and after tests to evaluate filter performance and dust holding capacity. It provides a flexible means to test filters according to various standards and customized methods.