Based on this view, this paper analyzes the suitability of protective respirators to human body, and systematically puts forward such ergonomic problems as seal, respiratory resistance, dead space and field of vision about protective respirators at the angle of human facial features and bio-mechanical characteristics of head and neck.

Objective:To study the clinical significance of the respiratory resistance and diffusion capacity in lung cancer patients.

Eight subjects wearing five types of non-powered air-purifying respirators with different respiratory resistance and dead space were engaged in bicycle exercise test under medium(100W) and higher(155W) labor intensity,and the subjective well-being of subjects were recorded and analyzed.

WT5BZ]To investigate the relationship between the impulse oscillometry method and plethysmogrophy used in measuring airway resistance, Using the two methods to measure the airway resistance and the ventilation data of 158 patients.

Effects of Air Pollution on Respiratory System of Children in Anshan City;

Oxidized injury of respiratory system in rats exposed to air pollutants;

The study about influences of the air pollution on the respiratory system health of the children and their parents in Lanzhou;

Effects of respiration training in rehabilition of respiratory disease;

Objective To investigate impact of coal-burning air pollution on respiratory system among primary and middle school students,and to provide evidence for the prevention and control of air pollution.

Respiratory system was invaded easily by bacterium because of its anatomy characteristic, which induced the increase of the total mortality rate of respiratory infective disease, especially the children pneumonia in behindhand country and region, the elderly pneumonia which was caused by population aging and pneumonia which accompany with severe basic diseases or immunity feebleness.