Great value set of 6!! New Will Protect (Powerful Disinfectant and Deodorizing Water) This one product handles salon hygiene management. Will Protect has been upgraded! The concentration has been improved from 100ppm to 200ppm, resulting in approximately double the disinfecting power. Furthermore, it can now be used in humidifiers (ultrasonic type). ◎ Unlike ethanol (alcohol-based products), New Will Protect dilutes sodium hypochlorite using a unique manufacturing method to achieve the highest disinfecting power. ◎ It maintains its effectiveness for over 400 days at room temperature, allowing for long-term storage. ◎ Made only with food additive grade sodium hypochlorite and acetic acid (vinegar). (A chlorine concentration of 200ppm is the level approved for food.) It does not use dangerous hydrochloric acid, making it safe for the human body, hands, and equipment. ◎ It has a proven track record of being used for hygiene management by quarantine officers at Kansai Airport and other quarantine stations. It is also used in medical institutions, large food factories, major hotels, and hot spring facilities. Contents: 500ml x 6 bottles (spray type)