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Patent drawing for Device Providing Filtered Air for a User
US 20,230,028,200 A1
Safety US 20,230,028,200 A1 Not in force

Device Providing Filtered Air for a User

This is a personal air filtering device worn on the head. It features an oval frame that encircles the head, a clear face shield, and a fabric neck seal. A battery-powered fan draws air through an inlet filter, circulates it inside, and expels it through an outlet filter. The claims specifically detail a version with two sets of filters, one on each side of the user's head, often in removable housings.

Why it matters: Advanced 3D printing makes custom frame and seal prototyping easier.

Status
Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build
ModerateCustom frame, face shield, fabric, seals, electronics.

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