Temperature-Controlled Laminar Airflow for Allergen-Free Sleep Breathing
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Solution Overview
Problem
Current devices fail to effectively reduce allergen and airborne particle exposure in the breathing zone during sleep, leading to unresolved symptoms of asthma and allergic rhinitis, and poor sleep quality due to body convection currents and inefficient airflow control.
Innovation Solution
A temperature-controlled laminar airflow (TLA) device delivers filtered, slightly cooled air that descends and displaces body convection currents without causing drafts, creating a controlled breathing zone with a temperature difference of 0.5 to 1°C cooler than ambient air, significantly reducing allergen exposure and improving sleep quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional airflow devices are used to reduce allergen exposure, then particle removal is attempted, but body convection currents generated by the warm human body during sleep continuously replenish allergens in the breathing zone
Solution Approach 1:
The patent applies the anti-weight principle by using cooled, denser air as a counterforce to the warm, rising convection currents generated by the human body. The cooling unit produces air that is approximately 10°F cooler than ambient air, creating a downward-flowing dense air stream that opposes and displaces the upward body convection, thereby preventing allergen accumulation in the breathing zone throughout the night.
Solution Approach 2:
The device performs preliminary action by pre-cooling and pre-filtering air before it enters the breathing zone. The cooling unit and filter operate continuously before sleep begins, preparing a reservoir of cool, clean air that is then delivered during sleep to proactively counteract body convection and maintain allergen-free conditions throughout the sleeping period.
2Speed
If cooled air is used to displace body convection, then airflow velocity increases, but this causes uncomfortable drafts and dehydration
Solution Approach 1:
The patent applies parameter changes by precisely controlling the temperature differential of the supplied air. The cooling unit maintains the air at approximately 10°F cooler than ambient air - cool enough to create sufficient density for displacing body convection currents, but not so cold as to cause uncomfortable drafts or dehydration. This optimal temperature parameter resolves the contradiction between achieving effective convection displacement and avoiding discomfort.
3Speed
If high airflow velocity is used to overcome body convection, then convection displacement is effective, but turbulent mixing with ambient air increases allergen contamination
Solution Approach 1:
The patent inverts the conventional approach by instead of pushing air forcefully to overcome convection, it uses cooled, denser air that naturally sinks and flows downward along the bed surface. This inverted approach using density-driven flow rather than velocity-driven flow effectively displaces body convection while minimizing turbulent mixing with ambient air, thereby maintaining lower allergen concentrations in the breathing zone.
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 TLA device achieves a 95% reduction in airborne fine particles and improves quality of life by reducing asthma and allergic rhinitis symptoms, while maintaining a comfortable airflow that avoids drafts and dehydration, enhancing patient compliance and clinical outcomes.
Implementation Method 1
temperature controlled laminar airflow (TLA) device for supplying a substantially laminar airflow
Implementation Method 2
Human body generated convection currents passing close by the breathing zone enforce and condense emissions
Implementation Method 3
the air-temperature of the air delivered into the treated air zone is 0.5 to 1 °C cooler than the ambient air
Data Source
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AI summary
This invention relates in general to methods and devices for displacing body convection and thereby reducing exposure to allergens and other airborne fine particles within a personal breathing zone during situations of or corresponding to sleep thereby reducing or removing symptoms of asthma and allergic rhinitis while improving quality of sleep and in particular to methods and devices that utilize Temperature controlled Laminar Airflow (abbreviated TLA from herein and onwards). Also, business methods involving such methods and devices are disclosed.