Zehnder ComfoAir Q is the new generation of ventilation units that are more efficient, even quieter and more intelligent. State-of-the-art design, combined with intelligent technology, make Zehnder ComfoAir Q the best product available on the market. A large number of innovations enable optimum acoustic performance, even better heat recovery and particularly low energy consumption. Zehnder ComfoAir Q provides outstanding comfort for a perfect indoor climate with maximum energy efficiency.