Provided is a mycobacterium bactericide. The mycobacterium bactericide includes chlorous acid water. The free chlorine concentration of the chlorous acid water (as Cl) may be 50 ppm or more. A biofilm may be formed with the mycobacterium. The mycobacterium may be Mycobacterium intracellulare, Mycobacterium avium, Mycolicibacterium fortuitum subsp. fortuitum, Mycobacterium runyonii, Mycobacterium abscessus, Mycobacterium kansasii, M. avium subsp. paratuberculosis, or Mycobacterium ulcerans. A medicine containing chlorous acid water is provided for preventing and/or treating MAC lung disease.

Provided is a mycobacterium bactericide. The mycobacterium bactericide includes chlorous acid water. The free chlorine concentration of the chlorous acid water (as Cl) may be 50 ppm or more. A biofilm may be formed with the mycobacterium. The mycobacterium may be Mycobacterium intracellulare, Mycobacterium avium, Mycolicibacterium fortuitum subsp. fortuitum, Mycobacterium runyonii, Mycobacterium abscessus, Mycobacterium kansasii, M. avium subsp. paratuberculosis, or Mycobacterium ulcerans. A medicine containing chlorous acid water is provided for preventing and/or treating MAC lung disease.

The present disclosure provides a disinfectant liquid for disinfecting an animal. The present disclosure provides a disinfectant liquid that contains chlorous acid water, and that is used for disinfection of an animal by bringing the disinfectant liquid into contact with the animal. The contact is achieved by a rubbing method, a scrubbing method, or a basin method. The animal is a living animal. The animal includes an animal surface. The animal surface is skin. The animal surface is a finger. The animal includes a human body. The disinfection is performed in the preparation of food. The disinfectant liquid contains no animal-derived components, alcoholic components, or fragrances.

The present disclosure provides a disinfectant liquid for disinfecting an animal. The present disclosure provides a disinfectant liquid that contains chlorous acid water, and that is used for disinfection of an animal by bringing the disinfectant liquid into contact with the animal. The contact is achieved by a rubbing method, a scrubbing method, or a basin method. The animal is a living animal. The animal includes an animal surface. The animal surface is skin. The animal surface is a finger. The animal includes a human body. The disinfection is performed in the preparation of food. The disinfectant liquid contains no animal-derived components, alcoholic components, or fragrances.

It is an object to provide a novel wet wiper in which a sterilization effect and a wiping/cleaning effect are maintained even when the wet wiper is stored for a long period of time. A wet wiper is provided which includes: a fabric; and a chlorine-based treatment agent included in the fabric, wherein the chlorine-based treatment agent includes at least one of chlorous acid (HClO.sub.2), chlorite ion (ClO.sub.2.sup.−), and chlorine dioxide (ClO.sub.2) as an effective chlorine component.

The present disclosure provides a corona virus killing agent. In particular, the present disclosure provides a corona virus killing agent containing chlorous acid water. In particular, the present disclosure provides a method for killing corona virus, using chlorous acid water. The free chlorine concentration of the chlorous acid water (as Cl=35.45) may be at least 5 ppm or greater in the absence of organic matter. The content of chlorous acid in the chlorous acid water (as HClO.sub.2=68.46) may be at least 200 ppm or greater in the presence of organic matter such as when disinfecting hands/fingers. The corona virus may be SARS corona virus (SARS-CoV), MFRS corona virus (MERS-CoV), or the 2019 novel corona virus (SARS-CoV-2).

A system for creating and dispersing a dry fog utilizing a production system for producing hypochlorous acid, a preservation system for preserving hypochlorous acid, and a dry fog system for creating dry fog droplets of hypochlorous acid.

A system for creating and dispersing a dry fog utilizing a production system for producing hypochlorous acid, a preservation system for preserving hypochlorous acid, and a dry fog system for creating dry fog droplets of hypochlorous acid.

Chlorous acid is generated from a chlorite salt precursor, a chlorate salt precursor, or a combination of both by ion exchange. The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and adding hydrogen ion to solution. Chlorine dioxide is generated in a controlled manner from chlorous acid by catalysis. Chlorine dioxide can be generated either subsequent to the generation of chlorous acid or simultaneously with the generation of chlorous acid. For catalysis of chlorous acid to chlorine dioxide, the chlorous acid may be generated by ion exchange or in a conventional manner. Ion exchange materials are also used to purify the chlorous acid and chlorine dioxide solutions, without causing degradation of said solutions, to exchange undesirable ions in the chlorous acid and chlorine dioxide solutions with desirable ions, such as stabilizing ions, and to adjust the pH of chlorous acid and chlorine dioxide solutions.

Chlorous acid is generated from a chlorite salt precursor, a chlorate salt precursor, or a combination of both by ion exchange. The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and adding hydrogen ion to solution. Chlorine dioxide is generated in a controlled manner from chlorous acid by catalysis. Chlorine dioxide can be generated either subsequent to the generation of chlorous acid or simultaneously with the generation of chlorous acid. For catalysis of chlorous acid to chlorine dioxide, the chlorous acid may be generated by ion exchange or in a conventional manner. Ion exchange materials are also used to purify the chlorous acid and chlorine dioxide solutions, without causing degradation of said solutions, to exchange undesirable ions in the chlorous acid and chlorine dioxide solutions with desirable ions, such as stabilizing ions, and to adjust the pH of chlorous acid and chlorine dioxide solutions.