Air-Pur Technologie Certifié successfully addresses the needs of clean air for residential housing and multiple suppliers, we are a leader in this field. We are committed to improving the quality of indoor air and reducing health risks. Eighty-five percent of the fresh air enters a building through air handling units on the roof. The Air-Pur Technologie Certifié program for buildings is specially designed to move and protect the only source of fresh air in a building with a five-step process that improves the quality of air up to 99% . For more information about our services and products, please do not hesitate to contact us!more...See more text