Truth about VOC

VOC's are identified as chemicals that react with a chemical in the atmosphere to create compounds which cause ozone pollution. A VOC is toxic in and of itself, such as ethylene glycol, which is a toxic ingredient typically used in anti-freeze and in many paints.

Breathable walls allow any toxic vapors developing indoors to slowly diffuse to the outside, keeping the indoor air fresh and clean. Homes built with a vapor barrier and standard insulation prevent this occurance, as they try to keep all air inside (unless an air-to-air heat exchanger is installed, a must for super tight homes with vapor barriers).