Protective Face Mask With Separate Breathing Chambers
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Solution Overview
Problem
Existing protective face masks, particularly those used in low-risk environments, fail to efficiently prevent exposure to airborne pollutants and do not maintain clean air flow for extended wear, leading to health issues such as increased airway resistance, carbon dioxide accumulation, and oxygen deficiencies, especially for individuals with pre-existing breathing difficulties.
Innovation Solution
A protective face mask with separate nasal and oral chambers and controlled air passages, featuring a nasal chamber with a channel for the nose and an oral chamber with an angled directional cavity, ensuring directed airflow and a secure fit to any facial contour, reducing gaps and fogging, and incorporating elastic and wire elements for comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unitized chamber mask is used to provide barrier protection, then protection against air pollutants is achieved, but clean air flow is compromised leading to carbon dioxide accumulation and oxygen deficiencies
Solution Approach 1:
The mask is divided into separate inhalation and exhalation chambers with distinct air passages. The inhalation chamber receives filtered ambient air through its own air passage, while the exhalation chamber directs exhaled air away through a separate passage, preventing carbon dioxide accumulation and maintaining oxygen supply during prolonged wear.
2Reliability
If high filtration levels are implemented to protect against viruses and aerosols, then protection efficiency is improved, but breathing difficulty increases due to airway resistance
Solution Approach 1:
By separating the inhalation and exhalation pathways into distinct chambers with dedicated air passages, the mask optimizes airflow dynamics. This segmentation allows each chamber to be optimized independently - the inhalation chamber can use high-efficiency filtration materials while the exhalation chamber provides a low-resistance exit path, reducing overall breathing resistance.
3Reliability
If the mask covers the lower face to provide comprehensive protection, then barrier effectiveness is improved, but normal air exchange is restricted altering inhalation and exhalation patterns
Solution Approach 1:
The mask comprehensively covers the lower face for maximum barrier protection while internally segmenting the air exchange pathways. The separate inhalation and exhalation chambers with their dedicated air passages allow the mask to maintain complete facial coverage without disrupting normal breathing patterns, as each chamber independently manages its airflow.
4Reliability
If multiple layers of filtration are added to increase protection level, then filtration efficiency is improved, but mask weight increases causing discomfort during prolonged wear
Solution Approach 1:
The mask distributes multiple filtration layers strategically within the separate inhalation and exhalation chambers rather than concentrating them all in one location. This segmentation allows the high-efficiency filtration materials to be placed where they are most effective while balancing the weight distribution across the mask structure, reducing localized pressure points and discomfort during prolonged wear.
Data Source
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AI summary
An improved protective face mask is disclosed having separate chambers for the nose and mouth thereby creating separate air passages for air flow and better circulation of clean air flow for breathing. The mask comprises a first chamber made to form and fit upon the nose of the wearer having a first air passage and a second chamber formed to cover and contain the mouth of the wearer having a second air passage for directing air flow therein. The mask includes a secured separation means between the first chamber and the second chamber, and an angled directional cavity in the second chamber extending downwards from mouth area towards chin area for creating the second air passage to direct the air flow.