In Viet Nam, since 1980 so far, there are no data published about TLC, FRC, RV, Raw by conventional plethysmography technique. The aim of this study was to determine new references of TLC, FRC, RV, Raw in healthy, non-smoking men, with normal pulmonary function parameters by spirometry, aged 40-60 years old and the relationship between these values with age, height, weight, 8MI. This study was conducted as a cross - sectional study to investigate 40 men who were selected randomly selected from Ha Noi. The subjects were measured with a constant volume plethysmograph (Medical Graphics 1085 DL). The result showed that TLC, RV, FRC in the study are smaller than Asian, European, American. RV, RVfTLC were increased with age (p0.05) There are significant relationship between height-TLC, FRC, RV
weight-TLC, FRC (p0,05). There is not any relationship between 8MI-parameters.