According to statistics, influenza and other infectious diseases overtake more than 7 million people every year. This is despite the fact that most of them do not get sick in a hospital, and not even at home, preferring to endure the disease without going to the doctors and passing the infection to others.
The main reason for all this is the constant mutation of influenza viruses and other airborne diseases under the influence of drugs. An epidemiological danger arises even if the entire population is vaccinated, since vaccination may be powerless against new strains of viruses.
Everyone knows that it is easier to prevent a disease by doing prevention than to treat it with subsequent complications. One of these methods that prevent the spread of infections and viruses is the disinfection of the air that daily surrounds people in various public places. The recirculator, the bactericidal effect of which is provided by the destructive effect of UV rays on microorganisms, is a device that guards the he alth of the population. Considermore action of ultraviolet.
Discovery of ultraviolet rays
In the 80s of the 19th century, English scientists Blunt and Down found that microbial reproduction stops when exposed to direct sunlight. Later studies proved that bacteria die precisely because of that part of the solar spectrum, the wavelength of which lies in the range from 100 to 280 nm. This range is invisible to the human eye and is known as ultraviolet. The maximum radiation efficiency falls on a wavelength from 250 to 270 nm.
Bactericidal effect of ultraviolet light
The detrimental effect of UV rays on bacteria is caused by a photochemical reaction that occurs in microorganisms under the influence of UV quanta. The reaction ends with irreversible damage to the genetic chain of body molecules. This prevents further reproduction of viruses, bacteria and other pathogenic microbes, and also contributes to their destruction.
As a result of the action of ultraviolet, pathogens of infectious diseases are affected without the use of harmful chemicals, which is indeed more preferable for the environment. The bactericidal recirculator is the same high-precision weapon in the fight against pathogenic microorganisms.
UV Disinfection
Every day, people are forced to deal with pathogenic bacteria in various public places. To prevent the spread of diseases, in places of massstay of people install bactericidal irradiators and recirculators. You can see them at:
- hospitals, clinics;
- medical sanatoriums and recreation centers;
- kindergartens, schools;
- beauty salons, bathhouses, etc.
The ultraviolet bactericidal recirculator disinfects indoor air by repeatedly passing it through its body. The device is installed in such a way that the intake and exhaust of the air flow is carried out without obstacles. A bactericidal recirculator for the home is placed above window or door openings, if a wall-mounted version is used. The hanging height should be one and a half meters from the floor to the device itself.
About "Dezar" recirculators
Bactericidal recirculators "Dezar" are effective medical devices for safe air purification from bacteria in rooms where people are present. Their design features make it possible to exclude the release of ultraviolet radiation outside the housing, and special lamps do not produce ozone, which is harmful to humans. All this makes the bactericidal recirculator "Dezar" safe and effective in use.
During the operation of the device, flow disinfection is carried out using ultraviolet radiation in the C-band, the wavelength of which is 250 nm. Radiation of this spectrum has a high bactericidal activity against pathogenic bacteria, viruses, fungi, spores and protozoa.
Device series"Dezar" are produced at the "KRONT" enterprise, which includes a recirculator. The bactericidal lamp is installed in an imported irradiator and has a record resource of up to 8 thousand hours of continuous radiation. The cases of recirculators are made of impact-resistant and chemically resistant materials, which allows the device to be disinfected with any disinfectant.
Dezar recirculator device
Medical facilities have long used open-type ultraviolet irradiators, but in order to use them, it was necessary to be unoccupied during lamp operation.
UV bactericidal recirculator "Dezar" is a new generation of devices using ultraviolet radiation in rooms where people are directly located. Silent fans draw air through the UV lamp unit.
A high level of air disinfection (up to 99.9%) can be achieved with the help of an optimal ratio of lamp output and airflow rate. In addition, the effectiveness of the bactericidal action is increased by a special internal coating on the walls of the device. It has a high reflection coefficient, due to which the radiated energy is not dissipated or absorbed, but multiplied. The disinfection chamber is designed to prevent harmful UV rays from escaping the instrument.
Advantages of recirculators
Thanks to new UV lamps without ozone production, the production ofdevices of the Dezar series. Phillips makes lamps with a special coating that blocks UV radiation with a wavelength of less than 200 nm. This prevents the formation of ozone in the air and extends the life without replacement.
The bactericidal recirculator has a disinfectant effect sufficient to destroy all pathogens that are present in the air.
There are special standards for bactericidal safety, and for each category of premises there is an efficiency threshold that can range from 95 to 99.9%. Depending on this, several models of recirculators that meet the standards have been created.
Categories of bactericidal safety
There are different types of rooms to be equipped with bactericidal installations for air disinfection and the efficiency level is:
- 90, 0% for children's playrooms, school classrooms, residential premises of industrial and public buildings with mass and long stay of people;
- 95, 0% for wards, offices, and other medical facilities not included in category 2;
- 99, 0% for dressing rooms, milk sterilization and pasteurization rooms, wards with immunocompromised patients, intensive care units, central sterilization departments, bacteriological and virological laboratories, blood transfusion stations, pharmaceutical workshops for the manufacture of sterile drugs;
- 99, 9% for operating rooms, preoperative, maternity, sterile areas,children's rooms, and wards for premature babies.
Bactericidal air recirculator allows you to obtain the necessary parameters of sterility of the premises in which it is installed.
Instrument Specifications
Consider the following models of recirculators:
- "Dezar 2" - two powerful lamps of 15 W, 95, 0% efficiency, 3-4 room category, productivity - 70 m3/h;
- "Dezar 3, 4" - have two lamps with a power of 15 W, 99.0% bactericidal effect, belong to category 2-3, productivity - 100 m3/h;
- "Dezar 5, 7" - the first category of premises, 99.9% efficiency, equipped with two lamps with a power of 30 W, productivity - 100 m3/h.
These models from the "Dezar" line of irradiators are produced in two colors - white and blue. If the device needs to be moved from one room to another, the Dezar recirculators (4 and 7) have movable supports. In case of constant stay in one place, a bactericidal wall-mounted recirculator "Dezar" (2, 4 or 5) is suitable.
Scope of recirculators
Depending on the area of the room, the required number of devices is calculated that will ensure effective disinfection. So, for example, with a room volume of 45 m 3 to ensure 95.0% bactericidal efficiency, you can install 1 bactericidal air recirculator "Dezar 2". For placement in 100 m3you need to use two Desar devices (3or 4).
The use of recirculators is justified in premises of various types and purposes. In addition to hospitals and clinics, they are installed in homes and offices, children's institutions, industrial and domestic buildings.
Recirculators in home and office
For residential or office use, small-sized recirculators that meet all the requirements are ideal. They provide a reliable level of safety against various infections and pathogens, while not representing any danger to adults and children. Small size and original design allow you to install a bactericidal recirculator for home in any apartment.
Recyclers in the service industry
UV air disinfection devices are recommended for use in household facilities and service organizations:
- hairdressers;
- laundromats;
- beauty and massage parlors.
Children's institutions, such as nurseries, kindergartens and schools, should also install a bactericidal recirculator. Reviews about disinfection devices, especially during the period of exacerbation of mass diseases, are the most positive. Recirculators reduce the risk of transmission of infection, thereby preventing epidemics of influenza and other colds.
In March 2003, the chief sanitary doctor of Russia issued a decree that hairdressing salons, cosmetic, manicure and pedicure rooms are required to install closed-type bactericidal UV irradiators for air disinfectionin the presence of people.
Recirculators in he althcare facilities
Studies have proven that the bactericidal recirculator is capable of providing a high degree of disinfection up to 99.9% and meets the maximum requirements that apply to the premises of the first category, where there must be absolute sterility.
More and more medical institutions, such as hospitals and clinics, are installing closed irradiators - recirculators in their buildings to constantly ensure bactericidal safety.
