I hired carpet cleaners 4 days ago. They left a chemical smell all
throughout the house. I called them back and they said they had to use
more cleaning fluid than usual because the carpets were dirty. They
used precleaning fluid plus steam cleaning.

Today I hired another more well-respected company to try and get the
odor from the first group out. They steam-cleaned the carpet, but the
chemical smell is still there.

What can I do to get rid of this chemical smell?