Philip Landrigan, MD Dir, Children's Environmental Health Ctr.: Well, two of the most dangerous cleaning products are drain cleaners and furniture polish: Drain cleaners are incredibly hazardous to toddlers to kids from about the age of one to the age of four, because if a child in that age should drink a drain cleaner it can cause terrible, terrible scarring of the esophagus that can require multiple bouts of surgery to correct. Furniture polish because it's oil based. It is very dangerous because if a child swallows it, it moves into the lungs and can cause chemical pneumonia which can very difficult to treat. So I always tell parents that those are two chemicals that if you can live without them, live without them and if you must have them, keep them very, very safely locked up. Cleaning products in general can be hazardous to kids If they contain volatile solvents like some of the products that people use to clean up stains, have benzene or perchlorethylene, trichloroethylene, which create vapors in the homes which are toxic to kids, that can cause injury to the brain and nervous system. So it's best to stay away from solvent based cleaners and to the extent that people can go to the new generation of organic cleaners that are free of solvents I think it's good advice.