Hybrid Electro-Ionic Mask Filter for Biohazard Protection
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Solution Overview
Problem
Existing airway protection systems using activated carbon filters face challenges in predicting their absorptive capacity, leading to potential failure in biohazardous environments, and pose risks during filter disposal due to trapped toxic agents.
Innovation Solution
A hybrid filter system combining an activated carbon-based filter with an electro-ionic filter and a Faraday cage, which includes multiple electrodes arranged in series, capable of generating ozone for oxidative degradation and regenerating the absorptive capacity of the activated carbon filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If activated carbon filters are used for biohazardous protection, then absorptive capacity is provided, but the service life is unpredictable and limited
Solution Approach 1:
The patent applies parameter changes by monitoring the absorptive capacity of activated carbon through sensor feedback (humidity, temperature, pressure differential parameters) and dynamically adjusting the ozone generation level to regenerate the filter media, thereby extending service life and making degradation predictable
Solution Approach 2:
The system implements feedback control by using sensors to continuously monitor filter performance parameters (pressure differential, humidity, temperature) and adjusting the ozone generation accordingly to maintain optimal regenerative action and predict end-of-service conditions
2Reliability
If activated carbon filters trap toxic agents, then protection is provided, but disposal becomes hazardous
Solution Approach 1:
The patent converts the harmful trapped toxins into beneficially degraded products by exposing the filter media to controlled ozone levels that oxidize and break down toxic agents, transforming the hazardous waste into less harmful substances during the regenerative process
Solution Approach 2:
The system uses ozone, a strong oxidant, to accelerate the oxidation and degradation of trapped toxic agents in the activated carbon filter, effectively neutralizing hazards before disposal through controlled oxidative breakdown
3Productivity
If filter service life is extended through regeneration, then productivity is improved, but device complexity increases
Solution Approach 1:
The system implements self-service by automatically regenerating the activated carbon filter using an integrated ozone generator that cycles on and off based on sensor feedback, eliminating the need for external regeneration facilities and manual intervention
Solution Approach 2:
The patent merges the filtration function and regeneration function into a single integrated device, combining the activated carbon filter, ozone generator, and control system into one unit, thereby extending service life without proportionally increasing overall system 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 hybrid filter system provides enhanced protection by extending the life of activated carbon filters, ensuring continuous biohazard removal and safe disposal by regenerating the absorptive capacity and neutralizing trapped toxins.
Implementation Method 1
The electro-ionic filter can be configured to generate ozone at a level that degrades the organic compounds via oxidative degradation
Implementation Method 2
The electro-ionic filter can be configured to generate ozone at a level that degrades the organic compounds via oxidative degradation
Implementation Method 3
The Faraday cage can surround at least the electro-ionic filter
Implementation Method 4
The activated carbon-based filter can be configured to retain organic compounds
Data Source
AI summary
Aspects of the present disclosure include a hybrid filter for use with an activated carbon-based filter and attachable to a mask. The hybrid filter may include a chamber configured to receive the activated carbon-based, an electro-ionic filter, and a Faraday cage. The electro-ionic filter is in series with the material-based filtration element and includes a plurality of electrodes arranged in series with each other. The electrodes of the plurality of electrodes are evenly spaced apart from each other in an alternating positive-polarity negative-polarity sequence. The Faraday cage surrounds at least the electro-ionic filter.