Mondo Knows Facts

Pen caps contain ventilation holes to lower suffocation risks

International safety standards mandate airflow channels inside swallowed pen caps

International standard ISO 11540 requires pen cap manufacturers to include a central ventilation hole or air channel. The design safety feature ensures that if a child or adult accidentally swallows a pen cap and it lodges in their windpipe, air can still flow through the opening until medical emergency rescue arrives.

Where this comes from

ISO

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

Go further

More facts like this

Tags: pens, safety, standards

Pen caps contain ventilation holes to lower suffocation risks: the short answers

Where does this come from, and can I check it?
International safety standards mandate airflow channels inside swallowed pen caps. The figure is taken from ISO, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a everyday life fact?
Yes. It sits on the Everyday Life shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.