An evaporative element for use in a humidifier. In order to reduce the amount of chloride species evaporated into the air with the water, the evaporate element includes a dechlorination agent, such as sulfur compounds, ascorbic acid, sodium ascorbate, or combinations thereof. The dechlorination agen
An evaporative element for use in a humidifier. In order to reduce the amount of chloride species evaporated into the air with the water, the evaporate element includes a dechlorination agent, such as sulfur compounds, ascorbic acid, sodium ascorbate, or combinations thereof. The dechlorination agent can be applied to the water retaining elements of the evaporate element or to the rigid members used to support the water retaining elements.
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1. An evaporative element for a humidifier comprising: a plurality of stacked layers of a water retaining material capable of absorbing water and evaporating water;at least one layer of substantially rigid material adjacent to at least one of said the stacked layers of water retaining material for s
1. An evaporative element for a humidifier comprising: a plurality of stacked layers of a water retaining material capable of absorbing water and evaporating water;at least one layer of substantially rigid material adjacent to at least one of said the stacked layers of water retaining material for supporting said stacked layers; and,an adhesive for bonding the stacked layers together, for bonding the at least one layer of substantially rigid material to the stacked layers, or for both,wherein at least one layer of water retaining material includes a dechlorination agent. 2. The evaporative element of claim 1 wherein the dechlorination agent is selected from the group consisting of: sulfur compounds; ascorbic acid; sodium ascorbate; or combinations thereof. 3. The evaporative element of claim 1, wherein the water retaining material comprises slit and expanded wicking paper, and wherein each layer of slit and expanded wicking paper comprises a lattice of bridges and strings defining a multiplicity of openings, and at least a portion of said layers of wicking paper being staggered in relation to adjacent layers of wicking paper such that the openings in the respective adjacent layers are staggered in relation to each other. 4. The evaporative element of claim 1, wherein said plurality of layers of water retaining material comprises a first layer of wicking paper having bridges and strings defining said openings in said first layer and a second layer of wicking paper have bridges and strings defining said openings in said second layer, and wherein the openings of said first layer are substantially smaller than the openings in said second layer. 5. The evaporative element of claim 4, wherein said plurality of layers of wicking paper comprises alternating first and second layers. 6. The evaporative element of claim 1, wherein the least one layer of substantially rigid material further comprises a dechlorination agent that is selected from the group consisting of: sulfur compounds; ascorbic acid; sodium ascorbate; or combinations thereof. 7. The evaporative element of claim 1, further comprising: a plurality of layers of substantially rigid material, and wherein at least one layer of water retaining material being sandwiched in between layers of substantially rigid material. 8. The evaporative element of claim 1, wherein the at least one layer of substantially rigid material comprises a layer of slit and expanded metal. 9. The evaporative element of claim 1, wherein the at least one layer of substantially rigid material is sandwiched between said layers of water retaining material. 10. The evaporative element of claim 1, wherein the at least one layer of substantially rigid material comprises a slit and expanded metal lattice of bridges and strings forming openings there between, said openings comprising the perforations in said substantially rigid material, said bridges being about ⅛ inch wide, and said openings being about ½ inch long by about ¼ inch wide. 11. The evaporative element of claim 1, wherein said water retaining material has a Frazier permeability of at least 30 cfm/ft2. 12. The evaporative element of claim 1, wherein said water retaining material has a capillary rise of at least 79 millimeters per minute. 13. An evaporative element for a humidifier comprising: a plurality of stacked layers of a water retaining material capable of absorbing water and evaporating water, the water retaining material comprising slit and expanded wicking paper,wherein at least one layer of water retaining material includes a dechlorination agent. 14. The evaporative element of claim 13 further comprising: at least one layer of rigid material. 15. The evaporative element of claim 13 further comprising: at least one layer of slit and expanded metal sandwiched between said layers of wicking paper. 16. A process of making a humidifier wicking element comprising: incorporating a dechlorination agent onto at least one sheet of water retaining element, at least one layer of a rigid support member, or both;slitting and expanding a plurality of sheets of water retaining element;stacking the plurality of sheets of water retaining element;slitting and expanding at least one layer of a rigid support member;disposing the least one layer of a rigid support member adjacent to the stacked sheets of water retaining element; and,laminating the least one layer of a rigid support member and stacked sheets of water retaining element together into a composite wicking element,wherein the composite wicking element includes the sheet of water retaining element with the dechlorination agent, the layer of a rigid support member with the dechlorination agent, or both. 17. The process of claim 16, wherein an adhesive is used in laminating the sheets and rigid material together. 18. The process of claim 16, wherein the composite wicking element comprises a plurality of layers of rigid material which are slit and expanded. 19. The process of claim 18 wherein at least one layer of the slit and water retaining element is sandwiched between two layers of rigid material. 20. The process of claim 16 wherein incorporating a dechlorination agent onto at least one sheet of water retaining element, at least one layer of a rigid support member, or both comprises: applying the dechlorination agent to the at least one sheet of water retaining element, at least one layer of a rigid support member, or both; and,drying the at least one sheet of water retaining element, at least one layer of a rigid support member, or both after the dechlorination agent has been applied.
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Schuld, Daniel E., Adaptable evaporative element for a humidifier.
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