Patent ID: 7156093

Claim:
In a flexible respirator hood designed to fit over and around the head of a wearer, and including a substantially transparent lens received in a front opening of the hood, the improvement comprising: an inflatable neck cuff positioned near a lower portion of the hood and substantially circumscribing an opening through which the wearer inserts his head, said inflatable neck cuff being supplied by an air source, and said inflatable neck cuff having no outlet into the interior of the hood such that, once inflated, it fits under the chin of the wearer and exerts a sealing pressure against the neck of the wearer, thus preventing the hood from rising up relative to the head of the wearer due to upward forces resulting from introduction of air into the hood; and multiple overhead channels which define an air delivery path from the air source over the head of the wearer to the interior of the lens and downwardly across the face of the wearer.