1) No environmental pollution - eco-friendly water-based paint is generally inorganic, made from natural raw materials, causing little or no pollution in production or application versus traditional organic coatings. 2) Beneficial to health - some health-functional types not only avoid pollution but also benefit health, e.g., with antibacterial/deodorizing, air-purifying and formaldehyde-removing effects that improve the living environment. 3) Functionality - tied to its synthetic additives, whose diversity yields multifunctional, composite performance. 4) Practical - walls painted with it are bright and full, water-repellent, impact-resistant, better decorated than traditional coatings, non-toxic, odorless and free of heavy metals, formaldehyde and benzene; generally long-lived with excellent anti-aging, suitable indoors and outdoors.