The state-of-the-art tech uses an" active" air purification system that some experts claim can neutralise a wide range of pathogens, from bird and swine flu to Ebola and MRSA.... Laboratory tests have now found the technology can be used to kill a mutation of the SARS-CoV-2 coronavirus that is popularly known as the Delta variant.... Officially called Needlepoint Bipolar Ionisation( NPBI), the tech works by releasing" air cleaning ions" into the airstream. Ions are any atoms or molecules that