Reusable Multi-Layer HVAC Air Filter to Reduce Energy and Waste
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Solution Overview
Problem
Conventional HVAC system air filters are ineffective in removing airborne molecular contaminants and volatile organic compounds (VOCs) without restricting airflow, leading to increased energy consumption and unnecessary replacement, resulting in significant waste.
Innovation Solution
A reusable HVAC home air filter with a supportive frame and a filter medium comprising multiple layers of unique filtration properties, including electrostatic portions and antimicrobial molecules, is designed to remove airborne molecular contaminants and VOCs with minimal air pressure drop, featuring a combination of materials like paper, foam, and cotton, and a configuration that allows for easy cleaning and reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional air filters use highly effective filtration materials to remove very small contaminants, then filtration efficiency is improved, but airflow restriction increases and energy consumption rises
Solution Approach 1:
The filter medium is divided into multiple layers, each with different filtration properties. The combination of layers achieves high filtration efficiency while maintaining lower airflow resistance compared to a single dense layer, resolving the contradiction between filtration effectiveness and energy consumption.
Solution Approach 2:
The patent uses composite filter media combining different materials (such as electrostatic portions, antimicrobial molecules, and various filtration layers) to achieve high filtration efficiency for small contaminants while maintaining breathable properties that allow adequate airflow and reduce HVAC system energy consumption.
2Reliability
If conventional air filters are designed for high filtration efficiency, then contaminant removal is improved, but the filters require frequent replacement increasing waste
Solution Approach 1:
The filter is designed to be reusable rather than disposable. The supportive frame structure allows the filter medium to be removed, cleaned, and reinstalled multiple times, eliminating the need for frequent disposal and replacement, thus reducing waste while maintaining filtration efficiency throughout the service life.
Solution Approach 2:
The filter incorporates antimicrobial molecules and electrostatic portions that provide ongoing protective action beyond simple physical filtration. These features continue to function during cleaning and reuse cycles, extending the effective service life of the filter and reducing replacement frequency.
3Reliability
If conventional air filters use dense filtration media to capture small particles, then filtration efficiency is improved, but air pressure drop increases
Solution Approach 1:
The filtration process is segmented across multiple layers with progressively different pore sizes and filtration mechanisms. This distributed approach captures small particles effectively while maintaining overall porosity that allows air to pass through with minimal pressure drop, avoiding the need for a single dense barrier.
Solution Approach 2:
The filter medium utilizes porous materials with controlled pore structures that allow air molecules to pass through while capturing larger contaminants. The electrostatic portions and antimicrobial molecules are integrated within the porous structure, providing high filtration efficiency for small particles without blocking airflow and minimizing air pressure drop.
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 solution effectively removes airborne contaminants with high filtration efficiency and low air pressure drop, reducing energy consumption and waste by allowing the filter to be periodically cleaned and reused, thereby extending its service life and minimizing landfill contributions.
Implementation Method 1
A filter medium is retained within the supportive frame and is configured to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system
Implementation Method 2
The filter medium generally comprises a combination of one or more media layers, each of which having unique filtration properties
Implementation Method 3
The filter medium preferably is disposed between a first screen and a second screen, at least one of which comprising nylon, to prevent bowing of the filter medium due to air pressure
Implementation Method 4
featuring a combination of materials like paper, foam, and cotton, and a configuration that allows for easy cleaning and reuse
Data Source
AI summary
An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter includes a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium includes a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame includes a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.