The Therapy Air® iOn by Zepter is a sophisticated air purification and ionization system designed to enhance indoor air quality by effectively removing airborne pollutants. Certified Performance: Recognized as the best high-end air purifier by independent tests in Germany (2016 and 2020) and certified by the German GUI Lab in April 2020 for effectively reducing microorganisms, including bacteria and viruses primarily transmitted via droplet infection (e.g., SARS-CoV-2).