One potential drawback of cleaning with ammonia is the potential for it to damage things or people if not used correctly. Ammonia is a strong chemical, and should only be used in a safe and well-ventilated area to avoid causing harm. Additionally, people who are unable to read and follow safety instructions may end up doing more harm than good when using ammonia cleaning products. Finally, while bleach can also be a powerful chemical, it is also less likely to cause harm when used properly.