BANDě Negative oxygen ion inorganic art coating is a new type of healthy inorganic material for indoor air purification, which is a negative oxygen ion composite material prepared by using new nano-semiconductor materials. Under the action of photocatalysis, this material induces negative oxygen ions, which can capture and purify free VOC, formaldehyde, PM2.5, benzene series substances and other volatile organic compounds in the air, achieving the effects of air purification, antibacterial and anti-mold, creating a forest-level green and healthy production and living environment. It is an ideal interior wall coating material.