| http://www.w3.org/ns/prov#value | - BACKGROUND OF THE INVENTION [0001] This invention relates to a helmet, and more particularly to a helmet with ventilation for controlling the formation of fog on a shield thereof, and for respiration of a person wearing the helmet. [0002] Helmets are well known, and are commonly used to protect the head from impacts, debris, etc. during activities including but not limited to vehicle operation.
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