Tea tree oil is pretty safe to use when cleaning, but there are a few precautions you’ll want to take before using it on any surface in your home. It’s pretty potent, so experts recommend diluting it, either with water or a carrier oil, to reduce any risk of marks. If you’re worried, test it on a small, inconspicuous area first.
It’s also worth noting that, while uncommon, some people do find they’re allergic to tea tree oil. If you do have any kind of reaction when using it, it’s best to cut it from your cleaning routine altogether.