Who do I call to have my air tested in my home?

— Kathy F North Jackson, OH

Answered by Scott Grieves, CPM, CEA on January 6, 2015

Safety of cellulose installation for lung cancer patient?

— S J Green Westland, MI

Answered by Edward Wright on November 18, 2014

Do invisible dog fences emit dangerous frequencies?

— Erna K. Medford, OR

Answered by Richard Heller on October 16, 2014