Oxyducts employee only highly trained employees who have been certified with NADCA and Air -Care. We are very thorough and we take great pride and care in our work. When we come to your home or office we do a complete inspection and when we begin, we open access ports to allow your entire system to be cleaned and inspected. We can even provide you with before & after video inspections and/or before & after digital pics if you request them. At times, we might run across badly contaminated vents with a variety of materials that may pose risks to your health. We go to great lengths to remove these materials because the duct system can serve as a means to distribute these contaminants throughout your home. We use state of the art high-efficiency particle air (HEPA) vacuuming equipment. We can also help you with the yearly maintenance of your heating and cooling system, which consists of regular cleaning of drain pans and heating and cooling coils, regular filter changes and yearly.