A study in the Journal of Exposure Science and Environmental Epidemiology describes a capillary blood collection device to track veterans’ PFAS exposure. The approach uses a less cumbersome sampling route and was applied in a cohort living near potential per- and polyfluoroalkyl substance contamination sources. By enabling monitoring through a practical device workflow, the reported method could support higher-frequency exposure assessment in epidemiology and potentially in longer-term risk studies tied to contaminated environments. For translational healthcare stakeholders, the work illustrates how engineering can lower friction in biomonitoring—an area increasingly relevant for public health investigations and regulatory-facing evidence.