Ultraviolet (UV) light is part of the natural light spectrum. At a wavelength of 254 nm (UV-C), the genetic material of viruses is very reliably destroyed. However, possible UV-C air purifiers must be designed in such a way that the radiation is only directed against the viruses and is completely harmless to humans. A further challenge: the air that is sucked in by the cleaners must remain in the device long enough for all viruses to be killed. If it flows back out too soon, viruses remain alive and thus active.
With virtual simulation for air disinfection with UV light
Keeping your distance, observing hygiene, wearing a mask – this basic formula is an important tool in the fight against corona viruses in public. However, the viruses remain a problem especially in closed rooms, where they can spread very easily due to the reduced air circulation. Therefore, many public institutions such as schools additionally rely on ventilation – with moderate success. Scientists from the hygiene institute biotec have found a better solution together with the Heraeus Noblelight business unit: Special air purifiers based on ultraviolet light can kill 99.9 percent of the corona virus in the air.