Air purification device
AssigneeThe Victoria University of Manchester
InventorJohn C. Whitehead
Life of this patent
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Abstract
An apparatus for purifying air comprising two electrodes having a dielectric material such as glass extending therebetween. The dielectric material is air permeable, for example, in the form of a bed of discrete particles such as glass beads. The electrodes are also air permeable, allowing the air to flow through the electrodes and dielectric. Ozone is generated by discharge at points of contact of the dielectric particles. Airflow through the device is improved, allowing greater cooling, and higher volumes of airflow but at lower concentrations of ozone production than with prior art devices, thus reducing toxicity.
Claims14
An apparatus for purifying air comprising:
- (i) a pair of opposed, spaced air permeable electrodes,
- (ii) an air permeable fixed bed which is comprised of discrete particles of a dielectric material having a dielectric constant of less than 20, and which extends between the electrodes, said particles being in contacting relationship,
- (iii) means for applying a potential difference across the electrodes to provide an electric field in a direction between the electrodes, and
- (iv) means for providing an air flow through one electrode, across the fixed bed of dielectric material and through the other electrode.
A method of purifying air comprising passing the air through a first air permeable electrode, through an air permeable fixed bed of discrete particles of a dielectric material having a dielectric constant of less than 20 and through a second air permeable electrode whilst applying a potential difference across the electrodes to generate an electric field in a direction between the electrodes.
Dependencies are inferred from the claim text.