As being the owner of a small farm lime is safe to use. I use it in my stalls after cleaning to nuetralize the urine smells and keep it fresh. It also work well with keeping flea population down. I am also using it in my dog kennels. We have several large outside dogs and we use it to nuitralize the waste and keep the kennels fresh. It does need to settle a bit before letting your pets on it so what I do is sprinkle it in the kennels and spray with a fine mist so that when I put my dogs back in there is no more dust. If you inhale alot of it at one time if could cause problems but I am no expert on it. I just take that extra little step just for safety purposes. I hardly ever have a problem with fleas though so it must be doing its job.