FACE MASK SEAL FOR USE WITH RESPIRATOR DEVICES AND SURGICAL FACEMASKS, HAVING AN ANATOMICALLY DEFINED GEOMETRY CONFORMING TO CRITICAL FIT ZONES OF HUMAN FACIAL ANATOMY, AND CAPABLE OF BEING ACTIVELY CUSTOM FITTED TO THE USER'S FACE

摘要

The present disclosure is a face seal (FS) device for filtering face piece respirators (FFR) of all types, that corrects inner face seal leakage (FSIL) of particulate material that occurs due to well documented failures in FS designs of the prior art. The present disclosure differs from those of the prior art in having compensatory accentuations at locations along the entire 360 deg. FS inner perimeter that are based on specific details of facial human anatomy which are known to be sites of FSIL. The FS is also constructed of a heat activated thermoplastic copolymer that enables the device to be custom fitted to the user's face. Experimental data, confirmed with workplace protective factor (WPF) studies, show a 60-240 fold improved performance over FS designs of the prior art.

主权项

1. A face mask seal to be used to provide a seal between the wearer's face and a face mask respirator of any design, said seal comprising:
an inner perimeter with convex and/or concave accentuations of said perimeter that are designed specifically to face conform to, reciprocate and compensate for, corresponding specific anatomic features of the human face. an inner perimeter with convex and/or concave accentuations said perimeter that are designed specifically to conform to, reciprocate and compensate for, corresponding specific anatomic features of the human face where the anatomic features involved may include Critical Fit Zones (CFZs) an inner perimeter with convex and/or concave accentuations said perimeter that are designed specifically to conform to, reciprocate and compensate for, corresponding specific anatomic features of the human face the anatomic features involved may include those Critical Fit Zones (CFZs) that are bordered by the Rhinion-Osseocartilaginous Junction, or “Nasal Bridge”; along the NasoMaxiliary Ridge/Process, the Maxillary Zygomatic Ridge, and on to the Zygomatic Process (forward ridge); “CFZ-2” being the area Zygomatic Prominence, or “cheek bone”, along the Bucchal Wall Soft Tissue Structures and on to the Mandibular Ramus, Body, Inferior Rim; and “CFZ-3” being the area from the Mandibular Ramus, Body, Inferior Rim on both sides of the under surface of the face, and the Submental Soft Tissues in this zone.