The typical Purification Treatment takes approximately 6 hours (times may vary). During the treatment, there can be No people or pets in the building. By utilizing our Homeowner Checklist you can prepare your home for the treatment and get the maximum benefit. A Medallion Technician will place UV light ozone generators throughout the home or building space. When activated the generators produce ozone and immediately go to work oxidising the area, eliminating all harmful irritants, pollutants and foul odours. After the desired time the Medallion Technician, breathing supplied air will ventilate the home or building with powerful fans will ensure that the ozone level is back within normal limits. The half-life of ozone is relatively short and the fans help speed this process up – reverting ozone back to oxygen. The home is now safe to enter and full of fresh, clean healthy air!