By now, every homeowner should be aware of the dangers of asbestos, radon and lead in the home. But where do you look for them? EMSL Analytical, one of the nation’s leading environmental testing firms, has created a set of visual training posters to help homeowners find these dangerous substances. Incredibly useful if you are a visual learner like myself. These PDF files can be downloaded free from the EMSL web site.

Credit: EMSL Analytical web site