UV Facts

SHARED SPACES and SCHOOLS: The ABCs of IAQ - Why IAQ matters in Schools.


THE BENEFITS OF IAQ FOR STUDENTS, TEACHERS, AND SCHOOL BUDGETS Schools are places where students and staff spend a significant amount of time, typically more than six hours a day. Therefore, the quality...

CASE STUDY: Commissioning process of Upper-Air GUV in Lake Hills Church Facilities (TX-USA) according to ASHRAE GPC 37 Guideline


Introduction: On March 2023 we successfully applied to be part of the Pacific Northwest National Laboratory (PNNL) study on Upper Air GIUV for the U.S. Department of Energy (DOE). The Study is about evaluating...



In the world of agriculture and viticulture, ensuring the safety and quality of grapes and the subsequent wines they yield is of paramount importance. To this end, technological advancements are constantly...

FOOD PROCESSING: meat production and preservation


The meat production, processing, and preservation industry play a crucial role in the global food supply chain. Laboratories and factories involved in meat processing operate under strict environmental...

FOOD PROCESSING: filling and bottling


THE CRUCIAL ROLE OF UVC TECHNOLOGY IN FILLING AND BOTTLING INDUSTRIAL PROCESSING In the world of modern manufacturing, particularly in the food and beverage industry, ensuring product safety and maintaining...

FOOD PRODUCTION: bakery products


In the world of food production, where product quality and safety are paramount, UVC technology is emerging as a key solution for maintaining high standards of hygiene. In particular, in laboratories and...

LARGE ENVIRONMENTS: Vatican Museums, UVC disinfection of the equipment offered to visitors


The Vatican Museums in Rome, Italy, were attracting over 5 million visitors in 2022, making them one of the most visited museum complexes in the world. The Vatican Museums offer audioguides to enhance...

HORECA: Case Study Euroveacity - Bratislava (Slovakia)


We are proudly part of the Eurovea City of Future project in Bratislava! Eurovea will become the ideal place for living and relaxing in the center of Bratislava. The central feature will be Slovakia’s...

Ensuring efficacy of the UVC solution: replacing UVC lamps


Each UV-C disinfection application consists of one or more high-output ultraviolet lamps, as well as a "system" to ensure correct installation in each specific application. The UVC system...



Bread and Bakery products. Bread is the most important food in the western world. Each EU citizen consumes an average of 70 kg of bread every year (1). Bread, like other baked foods, is notoriously perishable...

HORECA: UV-C in professional kitchens for grease and odor reduction


In restaurants, large kitchens, community kitchens, shopping malls, office buildings, hotels and food courts, keeping the kitchen-hood and the exhaust systems ducts clean and hygienic, is crucial. It...

AIR PURIFIERS: we guarantee healthy and clean Air since more than 30 years


Air disinfection in community structures (schools, hospitals, offices) is very important, this avoids the diffusion of viruses and microbes that are often the cause of more or less serious infections. The...

UVGI technology at a glance


Ultra Violet Germicidal Irradiation (UVGI) Ultraviolet is that part of electromagnetic radiation bounded by the lower wavelength extreme of the visible spectrum and the upper end of the X-ray radiation...

UV-C treatment for better control of food quality


A well-known quote stated "You're what you eat", a thought that is increasingly relevant and common in this historical period in which consumers are increasingly attentive to the choice of...

Why do you treat water with UV-C rays?


The drinking water treatments are designed to make the water comply with the requirements for drinking water, improving the aspects: organoleptic (color, smell, taste), chemical (eg by removing iron and...

Healthcare-related infections: an avoidable risk


HAIs (Healthcare Associated Infections) are, by definition, diseases which affect patients inside hospitals and are not present or incubating at the time of admission. HAIs could appear after discharge...

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...



The current global crisis caused by the spread of the SARS CoV-2 corona virus has brought all dental activities outside the emergency sector to a standstill in most countries. It is now a question of...

COVID-19: How light progress UVGI disinfection solutions can be helpful in this time of great crisis.


At this time of great world crisis due to the effects of the spread of Covid-19, at Light Progress we are receiving a great number of requests from all over the world. It is not easy for us to work...

What is Coronavirus and how you can protect yourself


After the new Coronavirus (2019-nCoV) was identified in December 2019 in  WuhanCity, alarmism has now spread in many countries around the world. It is not difficult to meet people wearing masks...


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.

I raggi UV-C funzionano davvero, se applicati correttamente e con le dovute precauzioni. La differenza fra un progetto di qualità e una applicazione senza risultati è data dalla profonda conoscenza dell'argomento e dall'esperienza acquisita nel tempo. Dal 1987 Light Progress realizza progetti di successo in tutto il mondo e ha acquisito una clientela costituita da Società importanti in tutti i settori che necessitano di condizioni igieniche verificate per generare prodotti e servizi di qualità.