Abstract: The present invention discloses a device for removing chlorine from chlorinated potable water. The device contains a chlorine adsorptive material selected from the group consisting of cellulose, activated carbon, or activated carbon with an enhanced adsorptive capacity for chlorine. A method for enhancing the adsorptive affinity of activated carbon for chlorine in potable water is also disclosed. By pretreating ordinary activated carbon with one of several agents, including potassium iodide, ammonium carbonate and ammonium sulfate, the activated carbon, which is minimally active for chlorine reduction, is rendered highly active and able to be applied in much smaller quantities than presently known in the art. Also disclosed is the use of activated carbon in zero-pressure-drop devices instead of filters requiring a pressure differential.

Abstract: A water filter system having a housing for a plurality of serial-flow connected filter cartridges with distinct filtering characteristic related to the direction of flow of water being filtered. Each filter cartridge has a membrane wrapped activated carbon filter body. One of the filter bodies includes a heavy metal bacteriostat. The cartridges are each releasably retained in a manifold by keyed connectors including rotatable locking rings. Each cartridge having a distinct filtering characteristic includes a keying structure to ensure that the cartridge can only be connected to the manifold for placement in proper serial-flow relationship in the system. The filter system includes a spent filter cartridge indicator. The filter system is particularly suited for countertop placement and connection to a faucet.

Abstract: An air filter element for removing odors from indoor air having a dry of a mixture of silica gel, activated carbon, and a zeolite. This dry mixture may also be impregnated with a liquid for inhibiting the growth of microorganisms, the liquid being a fungicide/bacteriocide preservative and a polyhydric alcohol, or a grapefruit pulp/polyhydric alcohol reaction product. Also disclosed are novel air filters having these air filter elements and a material for removing particulate matter from indoor air.

Abstract: An air treatment filter element is produced by contacting an adsorbent material selected from zeolite, activated carbon or a combination thereof with a liquid for inhibiting the growth of microorganisms. Additionally, the adsorbent material may include silica gel. Preferably, the liquid includes a fungicide/bacteriocide preservative composition in an amount from about 0.5 to 2% by weight of the liquid, at least one polyhydric alcohol, the polyhydric alcohol being present in an amount from about 83 to 99.5% by weight of the liquid, and at least one additional compound for modifying the vapor pressure of the polyhydric alcohol, the additional compound being present in an amount from about 0 to 15% by weight of the liquid. The amount of liquid used is from about 5 to 50%, most preferably 20 to about 30%, by weight of the combined weight of the liquid and adsorbent material.

Abstract: Therapeutic compositions for the treatment of acne which comprise from about 0.1% to about 5% by weight naringin, from about 0.1% to about 10% by weight naringenin, from about 0.05% to about 5% by weight of an antimicrobially active partially hydrolyzed naringin, from about 0.01% to about 5% weight colloidal silica, and from about 80% to 97% by weight of a solvent.

Abstract: A process for the production of antimicrobial compositions from naturally occurring flavanoid glycosides. Flavanoid glycosides are acid hydrolyzed under substantially quiescent condition at a temperature within the range of about 60.degree. C. and about 100.degree. C. for a sufficient time to hydrolyze the flavanoid glycoside to partially hydrolyzed flavanoid compositions having antimicrobial activity.

Abstract: An improved animal litter is disclosed which slowly, continuously and uniformly releases an odor control agent, comprising a suitable absorbent material admixed with a vehicle which has been previously impregnated with an odor control agent. A method for imparting long lasting, continuous, uniform, slowly released odor controlling properties to any suitable absorbent material is also disclosed.

Abstract: The composition of matter including an aqueous solution of formaldehyde, a water-soluble hydrazinium salt, and a water-soluble ammonium salt provides a pesticide concentrate that when diluted, is predictably stable; may be used safely in soil or on foliage and around the roots of growing plants; and evidences controlled released properties.