Exhaust filter

The exhaust filters were a component of the helmets worn by Imperial stormtroopers. They were blue-colored, and located near the rim of the helmet.^[1]

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Sources

• Star Wars: The Black Series (Electronic Helmet: Shadow Trooper) (backup link)
• Star Wars: The Black Series (Electronic Helmet: Imperial Stormtrooper) (backup link) (First mentioned)

Notes and references