Personal Air Purifier
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Solution Overview
Problem
Current Personal Protective Equipment (PPE) such as face masks are inadequate in protecting individuals from a wide range of airborne pathogens and particulates, as they do not effectively eliminate all airborne bacteria and viruses before they enter the human body, and vaccines or therapeutics for these diseases are difficult to distribute globally without side effects.
Innovation Solution
A portable, wearable air purifier with a metallic air path and air ionizer that attracts and traps pathogens, providing purified air to the user through a fan-driven airflow system, which includes a negatively charged metallic surface for oligodynamic effect and texturized surfaces to trap pathogens, and an air ionizer to further purify the air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional face masks are used, then basic filtration is provided, but they do not effectively eliminate all airborne bacteria and viruses
Solution Approach 1:
The patent combines multiple air purification mechanisms (electrostatic attraction, oligodynamic effect, ionization) into a single wearable device. The metallic air path integrates both electrostatic charge and oligodynamic properties, while the air ionizer adds a third mechanism, creating a multi-layered protection system that significantly improves reliability compared to traditional masks.
Solution Approach 2:
The patent introduces a metallic air path as an intermediary component between the air inlet and outlet. This metallic path serves as both an electrostatic attractor and an oligodynamic agent, mediating the interaction between airborne pathogens and the device to achieve enhanced elimination effectiveness.
2Reliability
If a wearable air purifier with multiple purification mechanisms is used, then protection effectiveness is improved, but device complexity increases
Solution Approach 1:
The metallic air path performs multiple functions simultaneously: it provides electrostatic attraction, exhibits oligodynamic antimicrobial activity, and guides airflow. The fan pump also serves dual purposes by drawing air through the purification system and directing purified air toward the user's breathing zone, reducing overall device complexity despite multiple purification mechanisms.
Solution Approach 2:
The air ionizer is positioned within the housing to ionize air along the metallic air path, creating a nested arrangement where the ionization function is integrated within the existing airflow and purification structure. This nesting approach allows multiple functions to coexist in a compact form factor.
3Reliability
If the metallic air path is negatively charged to attract pathogens, then pathogen elimination is improved, but energy consumption increases
Solution Approach 1:
The metallic air path maintains its negative charge and continues to attract pathogens without requiring continuous external energy input. Once charged, the electrostatic field persists, providing ongoing pathogen attraction and elimination passively, thereby minimizing energy consumption while maintaining high reliability.
4Reliability
If the metallic surfaces are texturized to trap pathogens, then pathogen elimination is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent changes the surface parameter of the metallic air path by texturizing it, creating microscopic peaks and valleys that mechanically trap pathogens. This surface modification enhances the oligodynamic effect and pathogen retention without requiring high-precision manufacturing, as the texturization can be achieved through standard surface treatment processes.
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 wearable air purifier effectively eliminates airborne pathogens and particulates, providing greater protection than traditional PPE by generating purified air that is directed towards the user, ensuring continuous protection from a variety of airborne diseases.
Implementation Method 1
a metallic air path that enables an oligodynamic effect to attract and trap pathogens present in the airflow through the purifier housing. The metallic air path can be negatively charged to facilitate the attraction of pathogens.
Implementation Method 2
an air ionizer that ionizes the airflow through the purifier housing to further purify the airflow through the purifier housing
Data Source
AI summary
A personal air purifier is a portable device that eliminates all pathogens and particulates present in the air breathed by the user. The device includes a purifier housing, an air inlet, an air outlet, a metallic air path, an air ionizer, a power source, an air fan, and a controller. The purifier housing retains the metallic air path, the air ionizer, the power source, the air fan, and the controller. The air inlet and the air outlet are openings that allow airflow through the purifier housing. The air fan generates airflow through the purifier housing. The metallic air path and the air ionizer sanitize the airflow through the purifier housing. The power source provide the operating power for the air ionizer, the air fan, and the controller. The power source positively charges the metallic air path. The controller enables the selective control of the air ionizer and the air fan.