System for allergen reduction through indoor humidity control

Details System for allergen reduction through indoor humidity control System for allergen reduction through indoor humidity control

2007-09-04

2007-09-04

Lawrence, Frank M. (Department: 1724)

Gas separation: processes

With control responsive to sensed condition

Concentration sensed

C095S121000, C096S111000, C236S04400R, C236S04400R

Reexamination Certificate

active

10898042

ABSTRACT:
The invention provides a humidity control system (HCS) to control indoor humidity within a specified range so as to reduce indoor house-dust mite allergen levels. The invention also provides a hydrogel absorber/desorber for reversibly absorbing water vapor from air releasing water vapor to air. The invention employs a reversible hydrogel desiccant as the active element for absorption and desorption of water, thus rendering the HCS more effective and energy-efficient than traditional humidification/dehumidification systems. The HCS of the invention treats indoor air by drawing fresh air in from outside and adjusting the humidity of the air-stream. In certain embodiments, fresh air is drawn in from the outside and mixed with recirculated air. The HCS uses a controller to introduce fresh air into the interior space and to control air circulation within it. Relative humidity is monitored remotely throughout the interior space using wired or wireless sensors.

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