PURETi works exceptionally well in all indoor environments – hotels, rental cars, schools, homes, offices and rest rooms – to purify the air. PURETi does not mask odors. It breaks them down. As air circulates the room, any pet, smoke, food or human malodors are oxidized at the molecular level; leaving interior air smelling fresh and healthy. And unlike sprays and candles, one safe, sustainable application of PURETi works wonders for months and years.