Constructional analysis of exhaust vents and their classification

Around the world various forms of livestock are connected with different injury risks occupational diseases. Morbidity rates of employees caring of the cattle are higher as compared to many other professional groups of agricultural workers. A higher morbidity is observed among workers of dairy farms and complexes. The combination of low temperature and high humidity, the presence of high concentrations of toxic substances in the air of the service buildings makes an adverse effect on the body work, which ultimately leads to a decrease in the body's resistance to infectious diseases, diseases of the upper respiratory tract. The most effective method of normalization of the microclimate in the industrial premises and reduction of concentrations of toxic substances is to install ventilation systems. The most economical system is the natural ventilation with the use of exhaust deflectors.