The covers themselves are exactly what I was looking for.  And need.  But there is a strong chemical smell on them.  It is not just your normal plastic odor.  It smells like burned electrical wires.  I have laundered them and hung them up individually in the garage to see if fresh air will help to dissipate that strong smell. I am hoping it will but I may have to return them as that odor would transfer to our clothes. Any suggestions would be helpful.