Healthier air, fewer sick days: Sterex plasma technology significantly reduces the risk of infection

10/01/25

Sterex plasma technology protects people wherever they live and work – whether in schools, offices, or care facilities. A groundbreaking clinical study by the Paracelsus Medical University in Salzburg has confirmed this for the first time worldwide:

  • Without Sterex, respiratory infections are 45 percent more likely (odds ratio: 1.45)
  • With Sterex, there is an 8.6% lower frequency of upper respiratory tract infections
  • With Sterex, symptoms are significantly milder

 Youtube Video Sterex Study

Watch the video about the study: https://www.youtube.com/embed/BzJqnPqvimM?si=aXCnHteojnCwBGx8

Lower risk of infection and milder symptoms

The randomized, controlled, double-blind clinical study was conducted under real-world conditions over five months in Salzburg and Upper Austria during everyday office life. Data from 150 participants was evaluated, 73 of whom were in the test group with Cubusan with active Sterex plasma technology and 77 in the control group with an inactive device. The results speak for themselves: In the test group, upper respiratory tract infections were significantly lower than in the control group, with the infection rate falling from 42 to 33 percent. Symptoms were also noticeably milder. Molecular analyses showed lower inflammation markers in the saliva of the test group. Without Sterex, the risk of infection is 45 percent higher. 

Active health promotion and productivity gains

The study clearly demonstrates the effectiveness of Sterex plasma technology. It reliably inactivates viruses and bacteria, thereby making an important contribution to reducing respiratory infections in everyday life and alleviating the burden of disease. On average, around 15 infections per 100 employees can be prevented each year. With an average sick leave of 5.2 days and productivity costs estimated at €250 per day, this translates into potential savings of about €19,500 annually. Compared to the investment costs, Cubusan air purifiers pay for themselves in just over a year – a win for health and efficiency.

Neutralizing germs instead of circulating air

The Cubusan was specifically developed for indoor air disinfection. Atmospheric, non-thermal plasma (Sterex) neutralizes up to 99.9 percent of viruses and bacteria while they’re still in the air. In contrast to conventional air purifiers that first circulate all the air in the room and then gradually remove the germs using filters, the Cubusan uses Sterex plasma technology to eliminate harmful particles directly at the source – where they are released into the air by aerosols.

You can view the entire publication on the study at the WILEY Online Library: Nonthermal Plasma Air Purification Reduces Infection Rate and Alleviates Symptoms in Upper Respiratory Tract Infections: A Randomized Controlled Trial