Nano water ion technology is a new type of air purification technology that can eliminate harmful substances in the air, such as carbon dioxide, benzene, formaldehyde and other organic pollutants and bacteria, by producing highly active hydrogen ions and oxygen ions. Viruses and other microorganisms. For formaldehyde, a common indoor air pollutant, nano water ions can oxidize formaldehyde into harmless substances carbon dioxide and water through oxidation-reduction reactions, thereby achieving air purification. However, this technology may need to be added to other purification equipment to work better, and its effect is also affected by various factors such as air flow rate, space size, air humidity, etc. Therefore, in practical applications, the applicability of nanowater ion technology needs to be evaluated based on the specific conditions and needs of the home or office, combined with other purification technologies and behavioral habits, to maximize indoor air quality.