"If duct leakage was the problem, we were facing the possibility of having to actually replace the hospital’s entire duct system – then we heard about Aeroseal. After conducting extensive research on the technology, our health and safety officer approved its use. It then took Aeroseal less than a day to effectively seal one of the hospital’s ventilation shafts. The positive impact that Aerosealing the shaft had on system performance was clear and immediate. We are now looking at using Aeroseal elsewhere throughout the hospital to improve the efficiency of our ventilation system."