Air purifier with extended humidity working range
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air purifiers face efficiency issues due to varying air humidity levels, as techniques like activated carbon adsorption and chemisorption are less effective at specific humidity ranges, and thermal catalytic oxidation materials deactivate at high humidity.
Innovation Solution
An air purifier with multiple filters, each optimized for different humidity ranges, and a control system that selects the most efficient filter based on real-time humidity readings, allowing for efficient air filtration across a wide range of humidity levels without manual filter changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single filter component is used in the air purifier, then the device structure is simple and manufacturing cost is low, but the filtering efficiency deteriorates when air humidity deviates from the optimal range for that component
Solution Approach 1:
The air filter is segmented into multiple independent filtering components, each optimized for specific humidity ranges. The control system selectively activates only the component suited for current humidity conditions, maintaining high filtering efficiency while managing complexity through modular design.
Solution Approach 2:
The air filter transitions from a static single-component design to a dynamic multi-component system where the active filtering component changes based on real-time humidity sensing. This dynamic adaptation ensures optimal filtering efficiency across varying environmental conditions.
2Adaptability or versatility
If multiple filter components are used to cover different humidity ranges, then filtering efficiency across all humidity levels is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The air filter system achieves universal applicability across all humidity ranges by integrating multiple filtering components with different humidity optima. The control system selects the appropriate component based on sensed humidity, enabling the device to function effectively in diverse environmental conditions without requiring multiple separate devices.
Solution Approach 2:
The system changes its operational parameters by selecting different filtering components based on humidity levels. Each component has distinct filtering characteristics optimized for specific humidity ranges, and the control system adjusts which component is active to match current environmental conditions.
3Reliability
If manual filter changes are required to optimize filtering for different humidity levels, then filtering efficiency can be maintained, but ease of operation deteriorates and user convenience is reduced
Solution Approach 1:
The air purifier performs self-service by automatically sensing humidity levels and selecting the appropriate filtering component without user intervention. The control system continuously monitors environmental conditions and dynamically switches between filtering components, eliminating the need for manual filter changes while maintaining optimal filtering efficiency.
Solution Approach 2:
The system implements feedback control by using humidity sensors to continuously monitor environmental conditions and adjusting the active filtering component accordingly. This closed-loop control ensures the device adapts to changing humidity levels in real-time, maintaining high filtering efficiency without requiring user knowledge or action.
4Adaptability or versatility
If the air purifier is designed for universal use across different regions with varying humidity levels, then market adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The air purifier achieves universal regional applicability by integrating multiple filtering components that cover different humidity ranges. This single device can be deployed across diverse geographic regions with varying climate conditions, eliminating the need for region-specific models and simplifying manufacturing and inventory management.
Solution Approach 2:
The filtering system is segmented into modular components that can be selectively activated. This modular architecture allows the device to maintain a compact, cost-effective design while providing the capability to adapt to different regional humidity conditions through electronic control rather than requiring multiple specialized hardware configurations.
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 efficient air purification across varying humidity levels, simplifying device use and manufacturing, reducing costs, and allowing for universal use in different regions without filter adjustments.
Implementation Method 1
activated carbon adsorption, thermal catalytic oxidation (TCO), chemisorption, plasma oxidation, photocatalytic oxidation (PCO), are commonly used gas abatement techniques
Implementation Method 2
chemisorption, plasma oxidation, photocatalytic oxidation (PCO), are commonly used gas abatement techniques
Implementation Method 3
receiving a sensed relative humidity of air, and selecting the most efficient component for filtering the air
Data Source
AI summary
Presented is a device (100) for filtering air, comprising: an air filter (101) comprising: a first component (102) adapted for filtering air having a humidity level falling within a first humidity level range; and a second component (103) adapted for filtering air having a humidity level falling within a second humidity level range; a control system (106) configured for: receiving a sensed relative humidity of air, and selecting the first (102) or the second (103) component for filtering the air, depending on the sensed relative humidity of the air.