Green ductwork Questions

How do outside air vents work?

— Marlene Sargeant East Lansing, MI

Answered by Joshua Lloyd on September 12, 2013

We have a black dust problem with the ducts in several rooms.

— Jan Jackson, NJ

Answered by Sean Lintow Sr on March 14, 2013

Could I have mold that I smell in my ductwork?

— R. STIPE Baxley, GA

Answered by Sean Lintow Sr on January 21, 2013

How should I insulate my duct work?

— Shauna Napa, CA

Answered by Michael Holcomb on January 6, 2012