Brightwell makes MFI particle analysis instruments. MFI instruments use a digital imaging method to measure size, morphology, and concentration of suspended particles using automated sample introduction, image acquisition and image analysis. MFI is well-suited for heterogeneous particle populations, analyzing high concentration samples, identifying particle sources, detecting low concentrations of outlier particles and resolving particle sub-populations. MFI is used by drinking and waste water researchers to study particle-related effects in areas such as watersheds, source waters, membrane filtration, filter efficacy, UV disinfection, coagulation, flocculation and distribution systems.