| Indoor air disinfection is a topic which has been not detailedly investigated. The main problem is that there is lack of environment-friend disinfectants. An environment- friend disinfectant of electrolyzed-oxidizing water has not been widely applied owing to its produced manner and product type. In this study, the characters, disinfection property and chemically synthesized technique of the electrolyzed-oxidizing water and its application to indoor air disinfection have been investigated. The following innovated results have been obtained.(1) It was found that as comprised with the chlorine disinfectants with the same effective chlorine content, the electrolyzed-oxidizing water has a disinfection property of 10 times more than those disinfectants for a short contact time (0.5-1.0 min). It is believed that the strong and rapid disinfection property of the electrolyzed-oxidizing water is attributed to the cooperation of its low pH value, high ORP value, and some content of effective chlorine.(2) A method to synthesize electrolyzed-oxidizing water has been developed using the water solution of a mixture of a solid acid and a chlorine disinfectant. The chemical synthesis electrolyzed-oxidizing water has similar chemical and physical properties and disinfection property with an electrolyzed-oxidizing water produced by electrolysis method.(3) It is found that the main factors to effect the indoor air disinfectant of the electrolyzed-oxidizing water is the dosage to be used as well as its effective chlorine content. The technique parameters of the indoor air disinfection using the electrolyzed-oxidizing water include: an effective chlorine content of more than 500 mg/L, a dosage of 30 ml/m~3, and a disinfection duration of 30 min.
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