Hygienic fundamentals of ventilation

Ventilation (air exchange) refers to the change of polluted air in enclosed spaces by outside atmospheric air. For the first time, scientifically substantiated requirements for air exchange in residential premises were proposed at the end of the last century

event_note
close

Ventilation (air exchange) refers to the change of polluted air in enclosed spaces by outside atmospheric air. For the first time, scientifically substantiated requirements for air exchange in residential premises were proposed at the end of the last century

folder_open Antidepressants
Read more

Specific prevention of nosocomial infections

Specific prophylaxis or immunization is aimed at increasing the resistance of patients and staff to nosocomial infections, it is divided into planned and emergency. Routine prophylaxis or vaccination (active immunization) begins with the newborn period – in

event_note
close

Specific prophylaxis or immunization is aimed at increasing the resistance of patients and staff to nosocomial infections, it is divided into planned and emergency. Routine prophylaxis or vaccination (active immunization) begins with the newborn period – in

folder_open Antidepressants
Read more

Sanitary value of carbon dioxide in indoor air

Carbon dioxide is colorless and odorless and therefore not organoleptically detected by humans; it is 1.5 times heavier than air and usually accumulates in its lower layers, including in the zone of human respiration; in significant concentrations,

event_note
close

Carbon dioxide is colorless and odorless and therefore not organoleptically detected by humans; it is 1.5 times heavier than air and usually accumulates in its lower layers, including in the zone of human respiration; in significant concentrations,

folder_open Antidepressants
Read more

Determination of indoor air exchange

Air exchange is characterized by ventilation volume and multiplicity. The volume of ventilation is the amount of air introduced (or supplied) into the room within one hour. It is possible to determine both the required ventilation

event_note
close

Air exchange is characterized by ventilation volume and multiplicity. The volume of ventilation is the amount of air introduced (or supplied) into the room within one hour. It is possible to determine both the required ventilation

folder_open Antidepressants
Read more

The epidemiological significance of the phase of bacterial dust

The epidemiological end of the bacterial dust phase is associated with those types of microorganisms that do not lose viability upon drying. The resistance of pathogenic microorganisms to drying is very different. It is known that in the coarse-grained

event_note
close

The epidemiological end of the bacterial dust phase is associated with those types of microorganisms that do not lose viability upon drying. The resistance of pathogenic microorganisms to drying is very different. It is known that in the coarse-grained

folder_open Antidepressants
Read more

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

folder_open Antidepressants
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

folder_open Antidepressants
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

folder_open Antidepressants
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

folder_open Antidepressants
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

folder_open Antidepressants
Read more