What can I encase my memory foam mattress in to create a barrier to its toxins?

— Georgia Allison Woodland, CA

Answered by Scott Grieves, CPM, CEA on February 4, 2013

Suggestions for retrofitting a 1908 house with insulation?

— Juniper Oakland, CA

Answered by John Rising on February 4, 2013

Are incinerating toilets really an option?

— Bonnie Tyler Beaverton, OR

Answered by Elizabeth DiSalvo on January 28, 2013

How long do wood sealers emit VOCs after drying?

— Elizabeth Sacramento, CA

Answered by Joel Hirshberg on January 28, 2013