Adjustable-Valve Mask Shells for Face-Seal and Airflow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Many masks are uncomfortable to wear, difficult to fit, and provide less than desirable protection due to improper sealing, especially for individuals with facial hair or varied facial characteristics, leading to issues such as particulate passage and fogging of glasses.
Innovation Solution
A mask apparatus comprising a mask shell, filter, and securing mechanism with adjustable straps and couplers that conform to the user's face, providing a secure fit and adjustable airflow through a valve, allowing for interchangeable filters and enhanced sealing around the nose and mouth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If disposable masks are made general in size and shape for mass production, then manufacturing efficiency is improved, but fit and seal quality deteriorate
Solution Approach 1:
The mask is divided into a reusable mask shell component and replaceable filter cartridges. The mask shell contains the sealing structure against the face, while filter cartridges can be exchanged. This segmentation allows the sealing portion to be customized or adjusted for different face shapes while maintaining efficient mass production of standardized components.
Solution Approach 2:
The mask incorporates adjustable straps and flexible materials that can be dynamically adjusted to fit different face shapes and sizes. The securing mechanism includes adjustable components that allow users to customize the fit, transforming a static general-purpose mask into a dynamically adaptable solution that maintains both production efficiency and fit quality.
2Ease of manufacture
If masks are made general in size and shape, then ease of manufacture is improved, but protection reliability deteriorates due to improper sealing
Solution Approach 1:
The mask shell is designed as a universal component that can accommodate multiple types of filter cartridges while maintaining a consistent sealing interface against the face. This multi-functionality allows a single mask shell design to serve various protection needs through filter interchangeability, preserving both manufacturing simplicity and protection reliability.
Solution Approach 2:
The mask incorporates adjustable parameters including strap length, strap tension, and filter cartridge selection to change the fitting characteristics. These parameter adjustments allow the same basic mask structure to adapt to different face shapes and protection requirements, maintaining ease of manufacture while ensuring reliable sealing and protection.
3Manufacturing precision
If masks are designed to fit varied facial characteristics, then seal quality is improved, but device complexity increases
Solution Approach 1:
The mask includes pre-configured adjustment mechanisms and multiple attachment points built into the basic design, allowing users to perform preliminary adjustments to achieve proper fit. This preliminary action capability is integrated into the standard mask structure, enabling seal quality improvement without requiring complex additional components or procedures.
4Adaptability or versatility
If adjustable components are added to improve fit, then adaptability is improved, but device complexity increases
Solution Approach 1:
The adjustable and interchangeable elements (filter cartridges, adjustable straps) are designed as separate, extractable components that can be removed and replaced easily. This extraction approach allows adaptability through component interchangeability while keeping the core mask shell relatively simple and manageable in complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus ensures a comfortable and effective seal, accommodating various facial structures while maintaining airflow and preventing particulate passage, thereby enhancing protection and user comfort.
Implementation Method 1
The filter has an exposed outer surface defined by the inner perimeter of the mask shell and is exposed to an atmosphere when engaged with the mask shell
Implementation Method 2
The valve extends through the exposed outer surface of the filter and is configured to provide adjustable air flow through the valve
Implementation Method 3
The securing mechanism includes opposing strap portions connected to respective sides of the mask shell and is configured and arranged with the mask shell to seal the inner perimeter around a user's nose and mouth by utilizing the user's head for applying a securing force to the respective sides of the mask shell in a direction toward the user's face
Data Source
AI summary
Aspects of various embodiments herein may be implemented as follows. An apparatus has a material shell, which may be conformed to a user's face, and a securing portion connected to the shell that may operate to secure a filter, such as to the user's face with the filter covering the user's nose and mouth. An adjustable valve is coupled to the filter and operable for providing adjustable air flow through the valve (e.g., selectively bypassing air flow through material of the filter). A securing force can be applied to the material shell, thereby sealing the shell around the user's nose and mouth. Various implementations involve multiple couplers at an attachment region between the material shell and securing portion, which facilitate the application of forces with two or more degrees of freedom for securing to the user's face. Further, various implementations facilitate replacing filters utilized with the mask shell.