We supply a range of different deck ventilation from Mushroom vents that can be adjusted from inside to adjust the volume of air flow into your boat. Others are large, robust, super styles and waterproof. To solar fan kits where solar vents are produce the ultimate high power solution for hot and humid area that does not get proper ventilation. The solar cells are collected during the day. These deck ventilation products are from leading brands such as ICP and Plastimo. You may be interested in engine ventilation.