When the foam box, food packing, especially food hot. To make the foam is degradation of toxic substances of various kinds, such as styrene (styrene) and gasoline (Benzene) when going from the decomposition of polystyrene foam box. Will affect the body.Effect on the nervous system. Red blood cells and liver, kidney, skin or eyes when being to irritate the snorting in is coughing, and difficulty breathing. Because of the mucous membrane irritation headache, drowsiness, etc. for gasoline.The harm to the smoker or eat is cause dizziness, nausea, or abdominal pain because the stomach is corrosive. Dizziness, nausea, vomiting, somnolence, seizures, heart pounding, and possibly death.(Anemia) because of gasoline will break into the marrow. Which causes the number of blood cells decrease and destroys the immune system within the body.