Do You Know What's in Your Air? Improving your air quality is crucial for your health. If you're tired of breathing in viruses, bacteria and other pathogens, turn to Aerus for assistance in areas of Montreal and across the province of Quebec. We are based in downtown Montreal (Westmount) and in the West Island (Pierrefonds). Our lab-tested air purification systems are designed to inactivate contaminants. With ActivePure® Technology, you can go beyond traditional air purification systems by reducing harmful contaminants in the air and on the surfaces of your home. We'll install the systems you need to help you breathe easier. more... See more text