Method and device for purifying and moistening air
First Claim
1. A method for purifying and moistening air within restricted areas, especially living and working rooms, according to which a fan-driven air stream is drawn into a casing of an air treating device, is filtered at an entrance of said device, is sterilized by ultraviolet radiation, is brought into contact with a water supply, and is discharged into a room as a purified and moistened air stream, the method comprising the steps of:
- passing an air stream through a channel-type passageway provided within a casing of an air treating device, sterilizing said air stream by ultraviolet radiation within said passageway, passing said air stream through an extension of said passageway over a substantially stagnant relatively large surface-area of a water supply provided within a tray and through an air channel formed by said water surface, a corrugated cover plate and side walls of said tray, and introducing discontinuities into said water surface of said tray and said air stream between said water supply and said cover plate above said water surface.
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Accused Products
Abstract
An air purifying and moistening device comprises a suction section having an air entrance opening, filter means at said opening and a motor-driven fan, an air purifying section including at least an ultraviolet radiation sterilization lamp, and a water ducting section within which the sterilized air is brought into contact with the water surface before it is discharged into the room. The water supply is a water trough or water tray with a large surface area of substantially stagnant water volume, which trough or tray is covered with a removable cover plate at a distance above the water surface. A casing forms a substantially closed air passage channel part of which is formed within said housing and another part of which is formed by the water surface, the lateral walls of the trough and the cover plate above said water surface. The exit-side of the air passage channel is formed as an air exit opening of said trough, which is restricted by said cover plate at the top, by the lateral walls at both sides, and by the front wall of the trough at the bottom.
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Citations
14 Claims
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1. A method for purifying and moistening air within restricted areas, especially living and working rooms, according to which a fan-driven air stream is drawn into a casing of an air treating device, is filtered at an entrance of said device, is sterilized by ultraviolet radiation, is brought into contact with a water supply, and is discharged into a room as a purified and moistened air stream, the method comprising the steps of:
passing an air stream through a channel-type passageway provided within a casing of an air treating device, sterilizing said air stream by ultraviolet radiation within said passageway, passing said air stream through an extension of said passageway over a substantially stagnant relatively large surface-area of a water supply provided within a tray and through an air channel formed by said water surface, a corrugated cover plate and side walls of said tray, and introducing discontinuities into said water surface of said tray and said air stream between said water supply and said cover plate above said water surface. - View Dependent Claims (2, 3)
- 4. An air purifying and moistening device comprising a casing including a suction section having an air entrance opening, filter means at said opening and a motor-driven fan adjacent said opening, and an air purifying section including ultraviolet radiation sterilization lamp means, said air purifying section being arranged downstream of said suction section, and further comprising a water supply section within which sterilized air is brought into contact with a water surface of said water supply, before it is discharged into a room, said water supply section being attached to said casing, wherein said casing forms a substantially closed air passage channel and said water supply section is formed by a surface of said water supply, lateral walls, a front and rear wall of a tray, and a cover plate above said water surface, said tray being disposed as an outside extension of said casing, said tray containing said water supply so as to form a large-surface area of substantially stagnant water, and having a restricted outlet area within said rear wall, said cover plate of said water tray being removably arranged at a distance above said water surface, top edges of side walls of said tray being corrugated and said cover plate being corrugated so that said cover plate rests on said sidewalls in a substantially conforming manner, and means for introducing discontinuities in said water surface of said tray are provided.
Specification