| 摘要 |
A ventilation system for a helmet that allows for ventilation of the interior of a helmet. A ventilation system for the cheek bar portion of a helmet, including a motorcycle helmet. The ventilation system may include ribbed passageways that facilitate airflow along the interior of the helmet, and may include access openings in an intermediate portion that couple the airflow from the ribbed passageways to the area of the helmet in contact with the user.
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