Air Sterilization

The UV-C FiltAir air sterilizer unit developed by Airvent offers a simple and effective solution for the elimination of airborne viruses

Ultraviolet-C Radiation

The mechanism of disinfection is based on ultraviolet radiation: UV-C radiation is electromagnetic radiation in the range of 200–280 nanometers, which is smaller than visible light but has a longer wavelength than X-rays. This radiation has a germicidal effect: microorganisms (viruses, bacteria, molds) exposed to UV-C light become inactive in seconds.

UV Ultraviolet light; IR Infrared light;  Visible light; λ Wavelenght
The optimal wavelength of UV-C radiation for maximum sterilizing effect is 253,7 nm.

Phase One

The unit performs mechanical separation in the first phase of the operation: the efficient (type M6) air filter removes the majority of solid contaminants.

Phase Two

In the second phase, the UV-C radiation kills the pathogens that have passed through the filter.

Airborne Viruses

In the case of Covid-19, airborne infection has been clearly confirmed. Pathogens can not only be transferred by large water droplets formed during coughing and sneezing, but also by fine vapor released into the air during exhalation. One of the main characteristics of aerosol - containing fine particles - is that it remains floating in the air for several hours. Therefore, it is recommended for everyone to wear a mask.

A way to partially prevent airborne viruses entering our bodies is to wear excellent quality masks which are usually not only very expensive but also uncomfortable. Furthermore, it has been shown that infections can also enter the human body through the eyes, not just the mouth and nose.

It is evident that decreasing the number of pathogens in the air could significantly improve the situation.

UV-C Disinfecting

The UV-C FiltAir air sterilizer unit developed by Airvent offers a simple and effective solution for the elimination of airborne viruses. The unit performs mechanical separation in the first phase of the operation: the air filter removes solid contaminants, and in the second phase, the UV-C radiation kills the pathogens that have passed through the filter. UV-C radiation is within the short wavelength range of natural light. When applied correctly it acts as a safe and highly efficient disinfectant as the short wavelength ultra violet radiation of 253,7 nm damages the pathogens’ DNA thus prevents them from infecting any further. The bacteria, viruses and fungi spores exposed to UV-C light die, however inactivating various pathogens requires different doses of UV-C light. By applying the right UV-C light source a sterilizing rate of 99,99% can be reached.

Other Effects of UV-C Radiation

There is no ozone formation: short wavelength UV-C radiation (180-200 nm) transforms the oxygen of the air into ozone, which, although above a certain level of concentration is toxic, can be useful in small doses which is why it is often used in deodorant appliances. Airvent’s UV-C FiltAir’s fluorescent tubes emit light in the wavelength of 253.7 nm, as a result the possibility of ozone formation is zero.

Effects on health: UV-C radiation damages the skin and can cause blindness. Thanks to the design - locked cabinet - the UV-C rays remain inside the unit and the human body is not directly exposed.

Types

The FiltAir is painted white or anthracite colors

Application

We recommend using Airvent’s UV-C FiltAir sterilizer unit in the following environments.