Purity Interior StainSansin's Purity Interior Stain is designed to penetrate deep into the wood for rich, even color. It can be applied via brush or spray application. While many interior stains contain harsh solvents that release highly toxic fumes (VOCs), Purity Interior Stain only uses water as a solvent. This makes it person and kid friendly as well as easy cleanup soap and water clean up. After applying Interior Stain, protect it with a topcoat of Purity Floor, or