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US 2014/0150797 A1Published application
Air purifier having an electret module
AssigneeAdc Tech International Ltd.
InventorWilliam S.H. Cheung
Life of this patent
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Abstract
An air purifier having an electret module for capturing airborne particles, the electret module including an electret element disposed within a housing and an adhesive layer coupled to the housing to capture airborne particles, whereby the static field of the electret attracts the airborne particles, which subsequently adhere to the adhesive layer.
Claims9
An air purifier having an electret module for capturing airborne particles, the electret module, comprising:
- an electret element disposed within a housing;
- and
- an adhesive layer coupled to the housing to capture airborne particles.
An apparatus for increasing a surface potential of an electret element, comprising:
- a high voltage generator;
- an AC to DC rectifier;
- a smoothing filter;
- and
- a battery, wherein the generator, the rectifier, the smoothing filter, and the battery are electrically coupled and configured to increase the surface potential of the electret element.
2 more elements
Dependencies are inferred from the claim text.