Using Oropharma Deodo is a breeze. Just take the handy dredger and sprinkle the deodorizer evenly over the cat litter in the tray. You can do this every time you clean the litter or as needed to keep the odor at bay. As for precautions, keep it out of reach of children and other pets. Don't let them ingest it. When it comes to maintenance, store the deodorizer in a cool, dry place away from direct sunlight. This will help preserve its effectiveness and keep it fresh for a long time.