Face Mask Valve Protector for Unobstructed Exhalation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing respirator designs often face issues with airflow obstruction due to strap configurations that can impede the exhalation path, potentially leading to reduced efficiency and increased risk of contamination from debris.
Innovation Solution
A face mask design featuring a harness assembly with a strap retainer and valve protector that allows straps to cross over the exhalation valve, minimizing contact and ensuring unobstructed airflow, with a deformable face piece and adjustable straps for secure fit and easy positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If straps are configured to cross over the exhalation valve for secure fit, then the mask stability is improved, but the airflow path becomes obstructed and contamination risk increases
Solution Approach 1:
A valve protector component is introduced as an intermediary element positioned between the straps and the exhalation valve. This mediator allows the straps to maintain their crossed configuration for stability while preventing direct contact with the valve, thus avoiding airflow obstruction and contamination. The valve protector serves as a protective barrier that reconciles the conflicting requirements of strap positioning and valve functionality.
2Reliability
If straps are positioned to provide secure retention, then the mask fit is improved, but the exhalation path may be blocked by strap interference
Solution Approach 1:
The valve protector acts as a mediator that enables the straps to maintain their retention function while preventing interference with the exhalation path. By positioning the protector between the straps and valve, it ensures that straps can be securely configured without compromising exhalation efficiency.
Solution Approach 2:
The harness assembly is segmented into distinct functional zones: the strap retainer for positioning straps, the valve protector for shielding the exhalation valve, and the valve housing for containing the exhalation mechanism. This segmentation allows each component to perform its specific function without interfering with others, maintaining both secure fit and unobstructed exhalation.
Data Source
AI summary
A face mask is configured to be worn on a wearer's head and to cover the wearer's nose and mouth. The face mask includes a mask body having apertures, an inhalation port positioned within one of the apertures of the mask body, an exhalation valve positioned within a second one of the apertures of the mask body, a harness assembly configured to extend about a wearer's head wherein the harness assembly includes a first strap, a strap retainer positioned on the mask body and disposed over the exhalation valve, the strap retainer configured to receive the first strap; and a valve protector positioned between the first strap and the exhalation valve.