The Certified Rating Programs of HVI were created to provide a fair and credible method of comparing ventilation performance of similar products. Products must be tested to qualify for certification, plus a random verification testing program ensures that the products continue to meet their certified performance ratings. All testing for certification and verification is performed by third-party laboratories independent of any manufacturer. The test procedures are developed by HVI members and based on internationally recognized standards. A complete list of HVI-Certified Products can be found in the HVI-Certified Products Directory.
The Certified Home Ventilating Products Directory© (CPD) includes more than 3,700 residential ventilation products, providing builders and consumers with a wide range of ventilation options suitable for the varying climates and housing throughout North America.