This is profi-air.

This is the solution for fresh and healthy air in each room. Durable and robust ventilation pipes that supply buildings with hygienically pure air and remove used air at the same time. Viruses and bacteria have no chance, and the air is filtered from pollen and pollutants, too. A pipe system that ensures the stable value of the building and increases energy efficiency. The central core of every heat recovery ventilation system. To achieve a healthy feel-good climate in our homes – day and night.