Air purification apparatus, and method for removing particulates, volatile organic compounds, and nitrous oxide
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air filtration systems are ineffective in removing volatile organic compounds (VOCs), particulates, and nitrous oxide-containing compounds from enclosed environments, such as vehicles and buildings, due to limitations in technology and existing filtration methods.
Innovation Solution
The development of an air filtration unit that incorporates a HEPA filter, a VOC removal unit with photocatalytic oxidation (PCO) filters, and a nitrous oxide-adsorbing filter, all integrated within an air duct system. This system utilizes ultraviolet light emitting diodes (UV LEDs) to activate catalysts in the PCO filters, which chemically reduce VOCs, and a nitrous oxide-adsorbing filter to remove nitrous oxide-containing compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single filter is used for all contaminants, then device complexity is reduced, but filtration effectiveness for specific contaminants decreases
Solution Approach 1:
The system divides air filtration into sequential stages with specialized filters for each contaminant type. Air passes through HEPA filtration first for particulates, then through photocatalytic oxidation or activated carbon for VOCs, and finally through specific adsorbents for nitrous oxide-containing compounds. This segmentation maintains high effectiveness for each contaminant while organizing complexity into manageable, functionally-distinct modules.
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 air filtration unit effectively removes VOCs, particulates, and nitrous oxide-containing compounds from enclosed environments, improving air quality and reducing exposure to harmful contaminants.
Implementation Method 1
a photocatalytic oxidation (PCO) filter, and a nitrous oxide-adsorbing filter, all integrated within an air duct system. This system utilizes ultraviolet light emitting diodes (UV LEDs) to activate catalysts in the PCO filters, which chemically reduce VOCs
Implementation Method 2
a nitrous oxide-adsorbing filter to remove nitrous oxide-containing compounds
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
Air filtration apparatuses, systems and methods for nitrous oxide and volatile organic compound (VOC) removal and non-VOC particle removal enable the removal of particulates, nitrous oxide-containing compounds, and volatile organic compounds from large volume enclosed environments. Systems incorporate HEPA filtration upstream from UV LED-assisted photo reaction chamber comprising a plurality of baffles having air flow-through airflow spaces are spaced apart along a duct, with a porous and permeable nitrous oxide-adsorbing filter oriented downstream from the UV-assisted photo reaction chamber further filtering the airflow in the system to remove nitrous oxide-containing compounds.