Protective Shield for N95 Respirator Contamination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
N95 respirators and face masks, designed for single-use, lose effectiveness when reused or used for extended periods, due to diminished protection from airborne particles and contaminants, necessitating a solution to maintain or enhance their protective capabilities.
Innovation Solution
A lightweight, flexible protective shield made from biocompatible materials, designed to cover a substantial portion of the N95 respirator or face mask without contacting it significantly, allowing airflow and heat dissipation, while preventing contamination and being durable and cleanable for repeated use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If N95 respirators and face masks are reused or used for extended periods, then supply duration is extended, but their effectiveness and protection capability diminish
Solution Approach 1:
A protective shield made of clear polymeric material is positioned between the external environment and the N95 respirator/face mask. The shield captures particles, liquids, and contaminants before they can reach and contaminate the mask, thereby maintaining the mask's filtration effectiveness throughout extended use periods.
Solution Approach 2:
The protective shield is worn over the N95 respirator or face mask before contamination can occur. By establishing this protective barrier in advance, the shield prevents particles and liquids from contacting the mask, ensuring the mask remains effective for longer durations.
2Object-affected harmful factors
If a protective shield is placed over the N95 respirator or face mask, then contamination is reduced, but airflow and heat dissipation may be restricted
Solution Approach 1:
The protective shield incorporates ventilation features including ventilation holes and/or mesh sections that allow air to pass through while maintaining the protective barrier. These porous elements enable breathability and heat dissipation while still capturing particles and liquids.
Solution Approach 2:
The shield is constructed from a clear polymeric material that is transparent and can be configured to allow visibility and airflow. The material properties and design enable heat dissipation while providing contamination protection.
3Reliability
If the protective shield contacts or attaches to the N95 respirator or face mask, then it provides stable protection, but it may compromise the seal and filtration efficiency
Solution Approach 1:
The protective shield is designed to cover only specific areas of the face (such as the forehead and upper nose area) rather than completely enclosing the N95 respirator or face mask. This segmented approach provides stable protection where needed while preserving the seal and filtration efficiency of the underlying PPE.
Solution Approach 2:
The shield is positioned as an external protective layer that does not directly contact or attach to the N95 respirator or face mask in a way that would compromise the seal. It serves as an intermediary protective element that maintains distance from the critical sealing surfaces.
Data Source
AI summary
A protective shield configured to be disposed over an N95 respirator worn by a user includes an inner shield and an outer shield. The inner shield defines a body, a flap, and a living hinge connecting the body and the flap with one another to enable the flap to fold under a user's chin while the body extends across a user's face. The body includes a center portion and first and second wings extending laterally outwardly in opposite directions from the center portion. The outer shield defines a body having a center portion and first and second wings extending laterally outwardly in opposite directions from the center portion. The wings of the outer shield are configured to releasably engage the respective wings of the inner shield to thereby releasably engage the outer shield with the inner shield with the center portions thereof in spaced-apart relation.