Personal Air Filter with Sealed Head Cover and Sensor Control

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Solution Overview

Problem

Conventional head covering devices are often heavy, bulky, and uncomfortable, failing to provide an effective and comfortable filtered air environment for users, especially in scenarios requiring protection from contagious diseases or harsh environments.

Innovation Solution

A personal air filtering device with a rigid transparent face shield and a fabric component that forms a seal around the neck, featuring an air mover system controlled by sensors and a controller to adjust airflow based on environmental and biometric parameters, and compatible with a smart app for user alerts and adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional head covering devices are used for protection, then safety and protection are improved, but weight and comfort deteriorate

Engineering Contradiction:

Improveprotection effectivenessVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The device divides protection functions into separate modules: a lightweight head covering structure and a detachable battery-powered air filtration system. This segmentation allows the main head covering to remain light while protection is provided by the modular filtration component that can be added only when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The head covering device is designed to serve multiple functions: it provides basic physical protection, integrates air filtration when activated, and can function as a communication device. This multi-functionality consolidates what would otherwise require multiple separate devices into one unified system.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If conventional head covering devices are used for protection, then safety and protection are improved, but device size and comfort deteriorate

Engineering Contradiction:

Improveprotection effectivenessVSAvoiddevice size

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The air filtration system and battery are nested within a compact housing that integrates with the head covering structure. The filters are positioned within the head covering shell, and the battery is contained in a recessed compartment, creating a space-efficient nested arrangement that minimizes overall device volume.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The device utilizes thin film filters and flexible sealing materials that conform to the head covering structure. These thin film solutions provide effective filtration and sealing without adding significant bulk or rigid structure, maintaining a compact and comfortable form factor.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If air filtration is added to head covering devices, then air quality and protection are improved, but device complexity increases

Engineering Contradiction:

Improveair filtration capabilityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The air filtration system incorporates automatic sensor-based control that detects air quality conditions and activates or deactivates filtration without user intervention. The system self-regulates based on environmental conditions, eliminating the need for complex manual control interfaces or constant user monitoring.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Integrated sensors continuously monitor air quality parameters and provide feedback to the control system. This feedback loop automatically adjusts filtration activation and intensity based on real-time conditions, simplifying user interaction while maintaining optimal protection levels through automated decision-making.

Inventive Principle:

Principle #23Feedback

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 device provides a comfortable and controlled air environment by actively filtering and circulating air, enhancing user safety and comfort in various conditions, including protection from contagious diseases and harsh environments.

Implementation Method 1

an air mover causing filtered air to enter the intake port from outside the device and exhaust air to exit the exhaust port

Methodology Applied

Scientific EffectAir movement:

Implementation Method 2

an intake port with an inlet filter, an exhaust port with an exhaust filter

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS12185787B2Personal air filtering device with automatic control of air movement

Publication Date: 2025.01.07 MICROCLIMATE INC

AI summary

A personal air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the face shield and fabric combine to cover an entire head of a user and form a seal around the user's neck, an intake port with an inlet filter, an exhaust port with an exhaust filter, an air mover causing filtered air to enter the intake port from outside the device and exhaust air to exit the exhaust port, and a controller configured to adjust the rate at which the air mover moves air.