Aeroseal is a breakthrough duct sealing technology that seals leaks from inside the duct system using a patented non-toxic aerosol mist. Developed at Lawrence Berkeley National Laboratory with partial funding from the U.S. Department of Energy, the technology addresses problems associated with energy waste caused by duct leakage. The Aeroseal process has proven to be the most effective, affordable and viable method for sealing leaky ductwork systems in commercial buildings. Once the leaks are sealed, fan speed can be reduced dramatically – thereby reducing payback time and increasing energy savings for institutions such as hospitals, labs, universities, K-12 schools and military facilities.