Shutter fans from AC Infinity are popular ventilation solutions for residential, commercial, and industrial settings. These fans are designed to improve air quality by exhausting stale indoor air. They are equipped with durable blades that move air quietly and efficiently, and their shutter design prevents backdrafts when the fan is not in use. 

The fans connect via the UIS system with the controller 69 and allows for thermostat settings so that the fan will start/stop based on your input of temperature or humidity - a probe with a 4 m cable is incl. to provide temperature and humidty. 

AC Infinity shutter fans come in a variety of sizes and configurations to meet different ventilation needs. They can be installed on walls, windows, and ceilings. These fans are known for their energy efficiency and long lifespan, making them a reliable and cost-effective choice for improving indoor air circulation and reducing moisture and odors.