Fire Escape Mask with Purification Canister and Oxygen Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gas masks have limited oxygen supply capacity, making safe evacuation difficult if evacuation time is delayed due to prolonged exposure to harmful gases and oxygen deficiency during a fire.
Innovation Solution
A fire escape mask with a purification canister to filter ambient air, a breathing bag to remove CO2 from exhaled air, and an oxygen supply system that can be adjusted to extend breathing time by replenishing oxygen in the breathing bag, allowing the user to breathe either purified ambient air or oxygen-enriched air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gas mask with an oxygen tank is used, then harmful gases and dust are blocked, but the oxygen supply capacity is limited and cannot sustain safe evacuation for prolonged periods
Solution Approach 1:
The system is divided into multiple functional modules: a purification canister for filtering ambient air, a breathing bag for storing breathable air, and an oxygen supply part for replenishing oxygen. This segmentation allows each component to perform its specific function independently, enabling extended breathing time through coordinated operation of multiple subsystems rather than relying on a single oxygen tank.
Solution Approach 2:
The mask system integrates multiple functions into a single device: it can filter ambient air through the purification canister, store breathable air in the breathing bag, and replenish oxygen via the oxygen supply part. This multi-functionality allows the device to adapt to different fire scenarios and extend breathing time by switching between or combining these functions.
2Duration of action of moving object
If an oxygen tank is used to extend breathing time, then evacuation duration is extended, but the device complexity increases
Solution Approach 1:
The oxygen supply part is designed to be integrated within or attached to the mask structure, with the breathing bag nested within the mask assembly. The purification canister connects to the mask via a hose, creating a compact nested configuration. This nesting approach allows multiple components to be packed into a space-efficient arrangement, reducing overall device complexity while maintaining extended breathing capability.
3Reliability
If a purification canister is used to filter ambient air, then harmful gases are removed, but the breathing time is limited by the canister capacity
Solution Approach 1:
The system enables continuous breathable air supply through multiple pathways: the purification canister continuously filters ambient air, the breathing bag continuously stores and supplies breathable air, and the oxygen supply part continuously replenishes oxygen when needed. This continuity of useful action ensures that breathable air is always available, extending the overall breathing time beyond what a single purification canister could provide.
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
Enables safe evacuation by allowing the user to breathe either purified ambient air or oxygen-enriched air, extending breathing time and ensuring safety during emergencies.
Implementation Method 1
a purification canister part configured to purify ambient air for breathing
Implementation Method 2
a carbon dioxide absorbent that removes carbon dioxide in an inner center thereof
Implementation Method 3
a moisture remover that removes moisture at a bottom thereof
Implementation Method 4
an oxygen supply part configured to supply oxygen to the mask part or the breathing bag part
Data Source
AI summary
Proposed is a fire escape mask including a purification canister part configured to purify ambient air for breathing, a mask part configured to introduce and discharge the ambient air purified by the purification canister part, a hose part connected to the mask part to circulate exhaled air and inhaled air, a breathing bag part configured to collect air from which carbon dioxide contained in the exhaled air has been removed, and an oxygen supply part configured to supply oxygen to the mask part or the breathing bag part.