Residential & Commercial Your Duct system is the respiratory system of your home or office. When it becomes contaminated with dust, dirt, pollen, animal dander... It becomes the breeding ground for mold spores, bacteria, fungus, mildew and other microbes. Each time the furnace or AC is turned on, these contaminants are circulated throughout your home or office and affect the health and comfort of your staff or family. Cleanmatik Plus The Trusted Name in Cleaning 514-895-8777