NOVELTY - Oxygen/water combining system (113) comprises an oxygen generator (600); a combining unit coupled to the oxygen generator for combining oxygen with water; and diffusion chamber (115) coupled to the combining unit for receiving the combined water and oxygen. The diffusion chamber includes a spray nozzle (503) positioned such that water and oxygen that pass through the spray nozzle create a vortex (511) to diffuse oxygen in water.    USE - For oxygenating water (claimed) and as a part of a system for producing and tuning super-oxygenated and structured water useful in aerobic process (bioremediation of contaminated (e.g. with petroleum products) surface and ground waters, animal waste treatment, biochemical oxygen demand (BOD) measurement techniques, fresh water aquaculture (e.g. fish farming), and insolubilization of dissolved contaminants (e.g. iron and manganese ions) for removal by filtration or sedimentation)); in therapeutic process (e.g. increasing oxygen content of blood and tissues, oxygenation of wounds to increase the rate of healing and to reduce infections, lung bypass by oxygenated liquids in pulmonary deficiencies, carbon monoxide poisoning, mouthwashes, dentifrices and cell level therapeutic applications, treatment for retinal detachments, diabetic retinopathy or macular degenerations); in cosmetics and toiletries; in food additives (e.g. sweeteners and flavorings); in beverages (e.g. alcoholic beverages such as shochu, beer and whisky, and soft beverages like fruit juice, nectar, soda pop, cola, teas, coffee, black tea); in foods (e.g. breads, noodles, bean curd, dairy product, meat processed product, soy source, miso, edible fat and oil, oil and fat processed product, fish paste product, sweet stuff, vegetables, pickles); in pharmaceutical formulations (e.g. ointment or suspension for treating diseases of the eye, skin and lower intestinal tract; nasal aerosol and inhalation formulations in the form of eye drops, eye wash and nasal drops); useful for producing oxygen-enriched micro-structured water preparations used for reducing and/or inhibiting the onset of fatigue in response to exercise in a human; for reducing muscle soreness/burning after extreme exercise; for treating infections and for inhibiting free radical damage in cells; and useful in beauty product (lipsticks, cheek rouges, brow, eye beauty product, manicure enamels, shaving lotion, hair washing product, hair raising agent, hair make up product, perfume, cologne, soap, liquid body cleaning agent, sun care product, hand care product, bath product, tooth paste, and oral cleaning agent).    ADVANTAGE - The oxygen/water combining system can adequately oxygenate and structure water, which when consumed by an animal/human via internal/external absorption, provides a distinct and definite increase in hydration, oxygenation and healthy metabolic changes regarding organic life processes. The system produces water having good oxygen retention capabilities. The dissolved oxygen content of water can be greater than 20 (preferably greater than 140) parts per million (ppm). Thus, infusion of water with 40 - 50 mg/l of oxygen allows more efficient and much more rapid aerobic treatment, compared to 7 - 10 mg/l for normal oxygen content of water. The oxygenated water has increased density that can be described using cluster factor, and oxygenated water has cluster factor of greater than 150 (preferably greater than 350). The oxygenated water improves quality of food additive; and modulates cellular performance of tissue or subject. The oxygen enriched water preparations can retain high concentration of oxygen under open-air conditions or within a container.    DESCRIPTION OF DRAWING(S) - The figure shows a block diagram of the oxygen/water combining system.    pipe (105, 111)    holding tank (109)    oxygen/water combining system (113)    diffusion chamber (115)    spray nozzle (503)    vortex (511)    pressure gauge (519)    oxygen generator. (600)