Month: August 2019

Types of ventilation . By the method of supplying air to the room, natural and artificial (mechanical) ventilation are distinguished , and depending on the method of organizing air exchange, local, general and combined (local + general). Ventilation systems . The air entering the room is called

The filtration method of air inoculation consists in passing a certain volume of air through a liquid nutrient medium. The simplest is Dyakonov’s method, in which air (10-12 l) is passed through an electric aspirator through a

Artificial (mechanical) ventilation is the movement of air due to mechanical motivation using special devices – fans. Compared to the natural one, it is more effective due to significant pressure, and the inflow and exhaust are

1. Connect the device to the mains. 2. Place an open Petri dish with a dense nutrient medium on the disk. When determining the total bacterial contamination, 2% meat-peptone agar is used for inoculation; in determining staphylococci

The organization of air exchange in the departments of hospitals (except infectious) is carried out according to the following principle – to exclude or to limit as much as possible dangerous air flows from dirty

The air purity of the premises is assessed on the basis of determining the total number of microorganisms contained in 1 m3 of air (TMP) and the presence of sanitary-indicative microorganisms: pathogenic, coagulase-positive, hemolytic staphylococci,

Operating room air can be polluted not only by anthropoxins and microorganisms, but also by vapors of a mixture of narcotic anesthetics with oxygen, some of which are easily flammable under certain conditions (ether, cyclopropane,

The composition of solar radiation reaching the Earth’s surface includes 59% infrared radiation, 40% visible and 1% ultraviolet. Schematically, the spectral composition of sunlight is presented. The radiant energy of the Sun and, in particular, its

In infectious departments, including tuberculosis, artificial supply and exhaust ventilation should be provided with an air exchange rate of ± 2.5, i.e., the same in terms of inflow and exhaust. Clean air is supplied to the

Of greatest practical importance is the use of BUV lamps for disinfection and sanitation of indoor air with a large crowd of people: waiting polyclinics, group rooms of kindergartens, recreation rooms in schools, etc. There