Exposure to a chemical compound commonly found in air fresheners, toilet bowl cleaners, moth balls and other deodorizing products may cause reduced lung function and have a long-term adverse effect on respiratory health, researchers report. Go here.
This isn't surprising. A list of dangers could be extended to household pesticides and herbicides, too. And the thing is, almost none of these products are really necessary. There are many safe and natural alternatives that serve the same purposes.
Here is a convenient list of reliable sources for checking on which products are thought to be harmful. Also listed are sources for safe, inexpensive and natural substitutes. You might want to bookmark it for future reference.