A weakly acidic hypochlorous acid aqueous solution that can be sterilized and deodorized manufactured by Ise Sea Paradise, Aquarium. Since it has a pH value of 6.5 ± 0.05 and an effective chlorine concentration of 50 ppm, which is close to neutral, it can be safely used without dilution. It is also suitable for spatial sterilization and is used in various scenes in daily life.