How do I install an exhaust fan in the garage to activate with the garage door?

— Josh Hallgren Pullman, MI

Answered by Raymond Pruban on November 25, 2010

We get a lot of dust in our house. Where could the dust be coming from?

— Warren San Francisco, CA

Answered by Randy Potter on November 4, 2010

What is the healthiest option when choosing a rainwater tank?

— Justine Schenectady, NY

Answered by Lee Hall on August 30, 2010