Types and systems of ventilation

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

event_note
close

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

Read more

Filtration method of air seeding

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

event_note
close

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

Read more

Artificial ventilation

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

event_note
close

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

Read more

The method of bacteriological research of air using the Krotov device

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

event_note
close

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

Read more

Organization of rational air exchange of the main premises of the ward

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

event_note
close

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

Read more

Hygienic assessment of microbial air pollution in indoor facilities

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,

event_note
close

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,

Read more

Organization of ventilation in operating units

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,

event_note
close

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,

Read more

The use of ultraviolet radiation for air disinfection

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

event_note
close

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

Read more

Organization of air exchange in infectious departments

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

event_note
close

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

Read more

Calculation of the number of installations for air disinfection

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

event_note
close

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

Read more