POPOQ is
a safe and effective eco-friendly disinfectant using "hypochlorous acid", a substance produced by white blood cells (neutrophils) that sterilize bacteria & viruses that have infiltrated our body. Dental chlorine acid water has a low effective chlorine concentration (Ph5-6.5, 10-80ppm) and is close to Ph4.5-6.0, a skin acid chlorine concentration of a weakly acidic person, so it has strong sterilizing power without irritation.