Yes. TiO2 is GRAS (generally regarded as safe) according to the FDA and European Science Commission has determined TiO2 to be safe in all forms – active and inactive, nano and micro. The National Sanitation Foundation has registered PURETi as safe for material surface contact. NIOSH has found PURETi application methods to be safe. There are no respirable powders with PURETi and near zero risk of human contact. Independent university tests have found that PURETi requires great force to abrade and that it abrades in flakes larger than 100nm and above the threshold of concern.