At Blue Jam Cafe, we put hypochlorous acid water into a humidifier to perform spatial disinfection. Hypochlorous Acid Water is a food additive used for cleaning and disinfecting applications in the fields of food processing, etc. It has a bactericidal effect. Certified and designated by the Minister of Agriculture, Forestry and Fisheries and the Minister of the Environment in 2017 as organic cultivation materials. Hypochlorous acid water is officially recognized as "safe for the human body". Sodium hypochlorite with similar names also has a virus-suppressing effect, but because of its strong alkalinity, it has the downside of dissolving proteins and corroding metals when it gets on the skin. Hypochlorous acid water, which is mildly acidic and gentle on the human body, is safe and safe sterilizing water and is harmless to the human body.