There are many different kits that one can buy to test indoor air quality.
I trained at a great respiratory center in denver, co, and they have a kit that works well. Here's a link to the site where you or your workplace can purchase a kit: http://www.Nationaljewish.Org/familyaircare/
the kit is mailed back to the medical center in denver, and the results are sent back to you. It's a great kit!