Porous Materials Inc. (PMI) is a U.S.-based manufacturer and service provider specializing in porosity, permeability, and pressure measurement technologies. The company designs and produces advanced instrumentation used to characterize porous materials and to perform precise pressure control, calibration, and leak testing across a wide range of industries.
PMI’s product portfolio includes porosimeters, permeameters, automated pressure systems, pressure calibration equipment, burst and leak testers, and customized measurement solutions. These instruments are used in research, quality control, and production environments to evaluate materials such as membranes, filters, batteries, medical devices, ceramics, metals, composites, and other engineered materials.