The ERV NEO 2000-25 by Wadbros is an Energy Recovery Ventilation solution intended for applications that require planned fresh-air supply and stale-air extraction. ERV systems are designed to transfer heat and, depending on their core technology, moisture between incoming and outgoing air streams. This process can help reduce the energy required to condition incoming outdoor air. https://wadbros.com/product/erv-neo-2000-25