When Brian Chesky and Quora User initially launched what nowadays is one of the biggest travel websites, they named it AirBed&Breakfast.
Perfluorooctanoic acid (PFOA), linked in laboratory animals to an increase in tumours of the liver, pancreas and testicles and reduced fertility, is one of the chemicals used in the chain of reactions that makes the common non-stick surface Teflon.
There are two villains here: a family of chemical compounds called phthalates that make PVC plastic soft (as in plastic shower curtains or wash-off baby books that go in bathtubs) and the industrial chemical bisphenol A (a hard, shiny plastic often used for baby bottles and sippy cups).