... pcs/cm3Major ingredientTourmaline The chemical composition of Anion powder CompositionSiO2B2O3Al2O3Fe2O3MnOMgOCaOContent40.028.329.231.481.202. ... , strengthen the body resistance to disease.Air Purifier:Can effectively eliminate dust and odor, remove ... gases, improveenvironment quality. Application Various anions coatings, anion plastic master batch, and function fiberCeramics, textiles, paper ...