Pen Cap Hole: A Life-Saving Secret 99% Don't Know
Lifestyle
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News18•30-01-2026, 18:59
Pen Cap Hole: A Life-Saving Secret 99% Don't Know
- •The small hole in pen caps is a crucial safety feature, not just for design.
- •It prevents suffocation if accidentally swallowed, especially by children, by allowing airflow.
- •The hole helps balance air pressure, making it easier to open and close the cap without creating a vacuum.
- •It also aids in controlling ink flow and preventing leaks due to temperature or pressure changes.
- •This overlooked detail is an excellent example of thoughtful engineering and safety design.
Why It Matters: The small hole in pen caps is a vital safety feature designed to prevent suffocation and balance air pressure.
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