@purascans: Every car seat sold in the US has to pass a federal flammability test, FMVSS 302 — and most makers meet it by treating the foam, fabric, and webbing with halogenated flame retardants. The Ecology Center’s testing found 11 of 15 seats contained these compounds, a chemical class researchers have linked to neurodevelopmental harm in kids, and studies show they off-gas into cabin air and settle into dust, faster in a hot car. It’s the most chemically treated surface your baby sits on for hours. Clek is one of the few brands that engineered them out. ⚠️