The quality ofindoor air has become a central theme during the pandemic, but not all solutions have received the attention they deserve. Among these, UV-C technology for air sterilization stands out, capable of eliminating viruses and bacteria with simplicity and safety. Used for decades in hospitals and schools, this technology remains little used in public and private spaces. Why do we ignore such an effective system?
An invisible weapon against pathogens, which transforms indoor air
The idea behind UV-C for theindoor air It's really minimal: special lamps emit ultraviolet light in the range between 250 and 270 nanometers, the ideal range for destroying microorganisms. This type of light damages the DNA of viruses and bacteria, preventing their proliferation. Installed in the upper part of the rooms, UV-C lamps sterilize the air without exposing people to the dangers of this radiation. The result? A safer and healthier environment.
And it is proven
Although UV-C seems like a futuristic technology, its roots go back to the early 1900s (the usual “Tiffany Effect"). Already in the 30 years, UV-C sterilization was shown to dramatically reduce post-operative infections in hospitals. During the 40s, an experiment conducted in schools with UV-C lamps significantly reduced the spread of measles. Yet despite its proven effectiveness, the technology remains largely ignored in spaces like airports, shopping malls and public transportation.
How does UV-C installation for indoor air quality work?
The UV-C system for indoor air divides the environment into two zones: an upper one, where UV light sterilizes the air, and a lower one, safe for occupants. Natural air circulation, supported by ventilation or simple fans, carries pathogens upwards, where they are neutralised. A correct installation includes precisely oriented lamps, to avoid harmful exposures. With minimal energy consumption, this technology is extremely efficient.
Why is it not adopted everywhere?
Despite its simplicity, UV-C suffers from low adoption. Initial installation costs and regular maintenance seem to discourage many organizations, even though the price is relatively low compared to the benefits to public health. Additionally, lack of awareness and promotion limits the use of this technology in public and private settings.
The pandemic has made it clear how crucial indoor air quality is, but the road to adopting effective solutions like UV-C is still long. This technology, which combines simplicity, history and effectiveness, could transform our management of closed spaces. Perhaps, the time has come to look at the ceiling not only as a limit, but as a resource for collective health.
