Operationally adaptable chemical-biological mask

Details Operationally adaptable chemical-biological mask Operationally adaptable chemical-biological mask

2006-04-18

2006-04-18

Bennett, Henry (Department: 3743)

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

C128S201220, C128S206170, C128S206150

Reexamination Certificate

active

07028688

ABSTRACT:
A chemical-biological protective mask having a weight distribution that imparts a balanced center-of-gravity to the wearer of the mask, and is adaptable for different operational requirements by adjusting or altering the air flow through the mask. The protective mask includes a head covering to fully cover the wearer's head including a hood, a face piece having a visor contoured to the wearer's face, ducting within the mask connected to a filtering system mounted at the rear of the head covering and a purge airflow through the hood. Additional side or front mounted filters can be added to provide either parallel or series filtration with the rear mounted filters. A blower system may also be used to impart an airflow into the mask and improve breathing resistance.

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