Sharp Plasmacluster Ion Generator (Vehicle Compatible Type) High Concentration Plasma Cluster Black IG-LC15-B

I have been reading about the difference between plasmacluster and negative ion, and the former is winner hands down. There are independent institutions who conducted tests to prove the efficacy of plasmacluster. With the COVID-19 pandemic, being able to inactivate airborne virus gives me peace of mind.I tested it using my ion counter, the unit emits both positive and negative ions.Thank you!