There is also a "Lung is phangphuet from chronic irritation", because of the smaller dust into the lungs have chronic respiratory system irritation until the birth phangphuet in lung lyrics.
There is also a symptom "Pulmonary fibrosis from chronic irritation," because the smallest dust particles into the lungs can irritate the respiratory disease. And fibrosis in the lung parenchyma.
There are also symptoms of "lung fibrosis from chronic irritation. Because of the small dust into the lungs have chronic respiratory irritation. The fibrosis in the lung.