Haze is a long-term process that affects the body. Haze contains a variety of harmful substances, such as sulfides and nitrogen compounds, and long-term inhalation of such substances will increase the chances of inducing lung cancer, so we must do a good job of haze protection measures. Winter itself is the high incidence of respiratory diseases, and with the emergence of haze more serious lung damage, which also intensifies the generation of lung diseases, to protect our lungs, we can not just wait for the cold wave to disperse the haze, appropriate protection is indispensable. 1, reduce going out or try not to go out when the haze is serious, it is best not to go out, or reduce going out, exercise can choose indoor small-scale activities, even if you have to go out, you should wear a mask. 2.Drink more water For the elderly and children, the haze days should be supplemented with enough water and, if necessary, vitamins to increase the body’s immunity. 3, pay attention to hygiene hand, mouth, nasal cleaning is also very important, if necessary, once a day. Before going to bed at night, you should also pay attention to nasal cleaning, you can prepare some saline or warm water for cleaning, but not too often, once a day can be. 4, ventilation, ventilation is best chosen at noon, when the haze is relatively dissipated, each ventilation 10-20 minutes can be. 5, reasonable diet haze weather, diet should not be spicy or too hot, we should eat more lung phlegm food, such as pears, oranges, loquat, fresh vegetables and lily, lotus seeds, silver fungus, etc.. In addition, tofu, cabbage, cabbage, cauliflower, yam, poria, white sesame, white peony, white radish and other “white” food in Chinese medicine theory are good for lung protection.