ToughGard™ duct liner with Enhanced Surface is an HVAC system duct liner produced with a surface coating with enhanced moisture-repellent properties, states the company. The manufacturer says the “breathable” coating preserves the sound-dampening performance of the duct liner by allowing sound waves to pass through the open-cell structure and into the sound-absorbing glass fiber mat. The airstream surface contains an EPA-registered antimicrobial agent for the purpose of reducing the potential of microbial growth, the company says.

CertainTeed Corp., Insulation Group, P.O. Box 860, Valley Forge, PA 19482; 800-233-8990; (website).

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