Nowadays more and more people are dying of lung cancer. Most people have a long history of smoking. Everyone knows smoking is harmful to health, but couldn't resist smoking. Meiwo science plastinated lung of smoking as teaching aids clearly shows smoker lung morphology, superior lobe, middle lobe, inferior lobe, facies diaphragmatica, etc, and will teach you the damage that smoking can do to your lungs. Do you still want to smoking?