Luftaustauschs
Luftaustausch refers to the process of replacing stale indoor air with fresh outdoor air. This is a crucial aspect of maintaining indoor air quality and ensuring a healthy living or working environment. There are several mechanisms by which luftausstausch occurs. Natural ventilation relies on wind pressure and temperature differences to drive air movement through openings like windows and doors. Mechanical ventilation systems, such as exhaust fans or whole-house systems, use fans to actively move air in and out of a building. Heat recovery ventilators (HRVs) and energy recovery ventilators (ERVs) are advanced mechanical systems that transfer heat and sometimes moisture between incoming and outgoing air streams, thus improving energy efficiency. Adequate luftausstausch is important for removing pollutants such as carbon dioxide, volatile organic compounds (VOCs), and moisture, which can build up indoors and lead to health issues like headaches, fatigue, and respiratory problems. The rate of luftausstausch is often measured in air changes per hour (ACH). Building codes and health guidelines typically specify minimum requirements for luftausstausch to ensure occupant well-being.