We Blow Tech Engineers offer a Fresh Air Ventilation Systems for indoors. These are used for total De-humidification by applying fresh air with ducting, grills and blowers. The extensive duct-work is done for most air pollution technologies. We provide rugged, cost effective and durable duct-work. Our duct-work is custom made to match your specifications and we can also design a duct system to correspond with the already existing system in your facility. We provide various accessories like dampers to include with the duct system for better cross ventilation indoors.