Good news. After you quit smoking, the cilia grows back. But if you start smoking, the smoke will literally kill the cilia, and your lungs will turn blackish grey, because they will be full of dirt, dust and other dirty things. Please read It Couldn't Just Happen chapter 15.It will explain things a lot better.ilia are tiny hair-like organelles that reside on the surface of cells. In the human body, many are found on cells where they sweep debris away from the lungs and nasal cavities. They also line the Eustachian tubes and sinuses, as well as the fallopian tubes in women.