HVAC: Sick Building Syndrome (S.B.S.)

What is the SYNDROME OF Sick Building (SBS)?

Let's immediately clarify our ideas, with the terminology "sick" we don't mean the building, but the people who reside there. The case study reveals that a large number of disorders afflicts individuals who spend many hours indoors.
In recent decades this habit has taken root with the consequence that, while on the one hand the need to have protected environments with acceptable microclimate standards has grown, on the other hand the need to contain energy consumption by eliminating waste and sealing workplaces has increased. 
The sick building syndrome, as found by the OMS itself, manifests itself through a combination of symptoms related to staying in the building itself such as: irritation of the skin and mucous membranes, headaches, mental fatigue, difficulty concentrating. Characteristic of the Sick Building Syndrome (S.B.S.) is that most of the symptoms disappear or fade away away from the "sick building".
The buildings, then, become containers in which the quality of the air is contaminated by countless factors that affect the health of the people who live there.
According to scholars, the best approach for the solution of the disease is the bio-psycho-architectural one, which aims at environmental control, at a conscious design, which puts design and planning to the service of the improvement of the quality of life of those who will have to live in the building.
WELL Bulding STANDARD is the certification that helps to prevent these problems. 
WELL Bulding Standard is the first health and wellness standard to promote health and wellness through the design and construction of buildings. 
WELL measures the attributes of buildings that impact occupants' health by examining seven factors, or concepts: air, water, noise, light, fitness, comfort and mind.
With this approach based on medical research we explore the connection between buildings where we spend more than 90% of our time, and the impacts on health and well-being of us as occupants. 
It is no coincidence that air is the first of the seven concepts on which the Well standard is based, and that the designer of the building must take into account the fact that to optimize and achieve high standards of indoor air quality must consider three aspects: remove contaminants, prevent their appearance and manage purification.
The WELL standard proposes the use of UV-C technology to reduce the microbial load in the air, which would lead to an increase in the IAQ.
To deepen the speech of the trament click on https://hvac.lightprogress.it/it/ 


Ultraviolet rays are electromagnetic waves which are part of light. Electromagnetic waves are divided into three main wavelength bands, expressed in nanometers, nm: Ultraviolet rays (UV) 100-400 nm Visible rays (light) 400-700 nm Infrared rays (IR) 700-800,000 nm UV rays are in turn identified in three bands:

  • UV-A (315-400 nm) with tanning properties;
  • UV-B (280-315 nm) con proprietà terapeutiche e di sintesi della vitamina "D";
  • UV-C (100-280 nm) with germicidal properties.

UV-C rays (100-280 nm) have a strong germicidal effect and reach their maximum efficacy at the 265 nm wavelength. The germicidal effect of UV-C radiation covers bacteria, viruses, spores, fungi, moulds and mites; this is mainly due to the destructive effect of the UV-C rays on their DNA, which damage their reproductive system and prevent them from replicating.

Bacteria, Viruses, Spores, Fungi, Mould, and Mites are all sensitive to, and can therefore be eliminated with, UV-C light. Mircrobes cannot acquire resistance to UV-C light, unlike that which occurs using chemical disinfectants and antibiotics. UV rays are ecological. Polluting the environment is inevitable using normal disinfectants. Directly inhaling the vapours, or swallowing food products contaminated by any contact with said chemical disinfectants, can also give rise to a number of serious risks. In cases where chemical disinfectants cannot be eliminated (food, pharmaceutical, healthcare industries, etc.), using ultraviolet rays for disinfection allows a reduction in their use, with considerable economic savings and greater care for the environment, while maintaining and almost always improving the level of disinfection. UV-C light devices can be installed in environments and on machinery and be programmed to maintain the same level of disinfection day and night, guaranteeing ideal hygiene conditions, without highs and lows. On the contrary, chemical disinfectants are effective only during their actual use. Using LIGHT PROGRESS equipped luminaires, operating costs are negligible; it could be said that “LIGHT PROGRESS” UV-C systems do not require maintenance except for the normal replacement of the lamps. The cost/benefit ratio is considered excellent; the devices are both powerful and long-lasting. Hence the elimination of germs using UV-C technology is low-cost and highly effective compared to (or in combination with) other systems.

UV-C really does work when applied correctly and with the necessary precautions. The difference between a quality project and an unsuccessful application is in-depth knowledge and experience gained over time. Since 1987, Light Progress has been carrying out successful projects all over the world and has acquired a clientele of major companies in all sectors that require verified hygienic conditions to produce quality products and services.