Method and device for cleaning air
AssigneeKobenhavns Universitet
InventorsMatthew Stanley Johnson, Jan Arlemark
Life of this patent
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Abstract
A method and device for cleaning air. The air to be cleaned is directed as a continuous flow in succession through a) a first zone wherein the air is treated with ozone and possibly also water, ammonia or other aerosol growth promoters; b) a second zone wherein the air is subjected to ultraviolet light; c) a third zone wherein the air is maintained for a sufficient time to allow aerosol growth; d) a fourth zone where particles in the air are given an electrical charge; e) a fifth zone wherein the air is passed through an electrostatic filter; and f) a sixth zone wherein the air flows over a catalyst to break down residual ozone.
Claims13
A method for cleaning air wherein the air to be cleaned is directed as a continuous flow in succession through
- a) a first zone wherein the air is treated with ozone;
- b) a second zone wherein the air is subjected to ultraviolet light;
- c) a third zone wherein the air is maintained for a sufficient time to allow aerosol growth;
- d) a fourth zone wherein particles in the air are provided with an electrical charge;
- e) a fifth zone wherein the air is passed through an electrostatic filter;
- and
- f) a sixth zone wherein the air flow over a catalyst to break down residual ozone.
An air clean device including a channel with an air inlet for air to be cleaned and an air outlet for cleaned air and means for leading air through the channel from the inlet to the outlet wherein the channel has following zones in succession:
- a) a first zone having a source of ozone;
- b) a second zone having a source of ultraviolet light;
- c) a third zone having a dimension which allows time for aerosol growth;
- d) a fourth zone having an electrical discharge generator;
- e) a fifth zone having one or more electrostatic filters;
- and
- f) a sixth zone having a catalyst for removal of residual ozone.
Dependencies are inferred from the claim text.