That hole in your pen cap can preserve an airway. 🖊️

That hole in your pen cap can preserve an airway. 🖊️ . . . In 1991, BIC began producing many caps with an opening intended to let air pass if one was accidentally swallowed. The design aligns with safety standards for ventilated writing-instrument caps. A feature only a few millimeters wide exists because people put pens in their mouths.