PTM4019 DPF SMART is our new 6th generation machine that emerged after more than 11 years of machine production and development. Now we are stronger with a more practical, more advanced and smarter machine. Our machines do not contain acid-based chemicals. It cleans a Car DPF at a rate close to 100% in just 19 minutes without harming its function. With this system, we achieve long-term satisfactory cleaning.