TiO2 with high efficiency for removal of indoor various pollutants.Dear LindaWish you have a nice dayMany thanks for your reply.Our company operates in indoor air purification,and,we are looking for the best nanometer photocatalyst coating powder to use for indoor pollutants removal =>90%.Various particulatesVOCsNOxAllergensMoldsetcSome suppliers offered me this one:.AppearanceWhite powder Appearance of powder dissolved in waterTransparent liquidParticle size5nmPurity99.9%Surface propertyHydrophilic I visited your site.There are many excellent products.But I think you know your product better than anyone, and I ask you to offer me the best product for our needs.Best regardsMr OulhousEmail: marocclean@gmail.com