Air Guardian®

Germicidal UV (GUV) refers to using ultraviolet radiant energy to inactivate bacteria, mold spores, fungi or viruses. When the process is applied in a given location, it has generally been referred to as ultraviolet germicidal irradiation (UVGI). Because of the public’s concern about ionizing radiation (e.g., X-rays and gamma rays), the term GUV avoids needless concerns about a link with that type of radiation. Another non-technical term is germicidal light, although “light” is technically only visible radiation.

Yes, UV-C kills living bacteria, but viruses are technically not living organisms; thus, we should correctly say “inactivate viruses.” Individual, energetic UV-C photons photochemically interact with the RNA and DNA molecules in a virus or bacterium to render these microbes non-infectious. This all happens on the microscopic level. Viruses are less than one micrometer (µm, one-millionth of a meter) in size, and bacteria are typically 0.5 to 5 µm.

Yes, if the virus is directly illuminated by UV-C at the effective dose level. UV-C can play an effective role with other methods of disinfection, but it is essential that individuals be protected to prevent UV hazards to the eyes and skin. UV-C should not be used to disinfect the hands!

This question (related to airborne transmission) is too difficult to answer without knowing all of the the associated environmental variables. There is an equation for this, called the Wells-Riley equation. The main variable is airflow dynamics.
The secondary variables to the risk of infection are the particle sizes expelled, the viral load (contagion), inhalation, and time. The best answer I can give is that the optimal protection from anyone in a room that has a viral load from COVID-19 is our Air Guardian solution. That has to do with VENTILATION (airflow) and the extent to which we purify that airflow. Clean air is 100% processed by our fixture and dropped into safe zones that reside within the strata of air that is being inhaled.
Some intricacies of air circulation and airborne infections are covered in our white paper.

Please contact us for a first consultation. This includes on-site room diagnostic with a brief discussion on existing conditions of air flow, lighting requirements, and measurement of current air quality with a particle counter. A sample unit can be viewed and put into operation in your targeted environment to allow you a first interaction with our technology.

You can calculate the energy cost of using Air Guardian in a time period by assuming a Kilowatt price of 0.20 CHF/KW.  The device uses 0.107 KW/hour. Assuming a period of use of 8 hours per day and 30 days per month, multiply CHF 0.20 x 0.107kW x 240hrs to get a monthly electricity cost of CHF 5.14 / month.

Our installation partner is located in Central Switzerland and has a long history of offering energy efficient, Swiss normed, electrical installations. Should you have your own maintenance and building staff, the devices will be delivered with operator's manual and installation video.