There are a few tell-tale signs that it's time for a proper vent cleaning. You might find yourself having trouble breathing, or discovering mysterious dust deposits on your furniture, or screaming when Bruce Willis crawls out of the duct coughing. Whatever the sign, Mr. C Duct Cleaning has the solution. The company's skilled technicians thoroughly inspect HVAC systems, then use the collected information to clean registers, grilles, and vents using a high-powered vacuum. The result? A system that's gloriously free of all dirt, debris, and action-movie stars.