The bathroom fans of the Xpelair Simply Silent Contour series for intermittent operation are equipped with Ghost air movement technology to achieve near-silent operation. This is accomplished through quietly running ball-bearing motors and precisely manufactured components that avoid all types of mechanical noise, as well as an advanced airflow design that protects against turbulence. Additionally, these fans are stylish and easy to install. These extractor fans quietly and effectively remove moisture, condensation, and odors to improve air quality in bathrooms, shower rooms, dressing rooms, and toilets.