The page in question contains more tips, as well as things that you can use to detoxify your internal organs.

Make sure there are no freon leaks from your refrigerator.

Freon is not toxic. It is so unreactive in fact that it winds up making it into the stratosphere where it finally gets broken down by high energy UV radiation. The brake down components then go on to promote ozone destruction. So getting rid of freon leaks is a good idea wrt the ozone layer but will have no affect on your health (at least on the short term).