Do you think it's okay to use scented candles and incense with a baby in the house? Or could breathing this in be harmful to their lungs?

I used both in the house, but not in the room with the baby until they were over a year old. Never had any problems with it.

DCMerkle

I cant imagine that it could be bad for the baby, but maybe you just want to play it safe and not use them for a while