DUCO’s range of natural ventilation products are an essential component in every building, helping you to create a healthy indoor climate all year around. From our standard range of cost effective self-regulating window vents that can be fitted to every kind of window, to high performance sound absorbing window vents for schools and apartments that keep unwanted noise at bay, to fire resistant window vents suitable for use in high rise applications, DUCO natural ventilation has the right product to help you get the very best out of your building environment.