Read more on these here: http://www.pvcfree.org/
Some quick tips on keeping your house cleaner:
- always buy PVC free shower curtains (they have these at bed bath and beyond as well as major dept stores nowadays). I've seen asthma be both created by and taken away by the removal of these. When a new shower curtain purges PVC's while someone is taking in humid air, it's not a healthy combination.
- air out ALL furniture BEFORE bringing in your home. I actually buy PVC free furniture when possible, or buy secondhand just to avoid this.
- Here is a GREAT free guide (most aren't free) http://www.besafenet.com/pvc/documents/PVC-Guide-1.pdf
Hope that helps!
Jen