Healthiest wood floor finish and healthy carpet recs?

Some people use linseed oil to finish wood floors. It is very eco-friendly & very safe for pets/kids. You would need to sand down the floor, clean it well & apply the linseed oil. It has been used for centuries. There are also recipes using part linseed oil, part turpentine. I don't know mych about it, but I saw a recipe like that in a Green Homes book from the library, so it must be fairly safe. I install wood floors, so I don't know much about carpet. I'm sure there are organic options, but I bet they are very expensive.

I'm glad you mentioned that you didn't sand. I guess I was assuming that the poster's friend's floors had some sort of polyurethan finish on it already, so you would want to sand that finish off first. But you are right, if the floors don't have a waterproof finish on them now, you could just clean them well & re-finish. We are installing an unfinished oak floor in our new house. I am goign to sand it well & finish it with linseed oil. Glad to hear you are happy with yours. Most of the floors we install for customers are mainstream, so they all want the polyurethane.