Beyond Guardian Air by Aerus
This one is the Cadillac which combines a buffet of processes most importantly is their patented Active Pure which has recently been proven the massively attack the Corona Virus:
Testing data conducted by an independent FDA-compliant laboratory, MRIGlobal, established a 99.98% surface kill rate of live SARS-CoV-2 virus in just 7 hours.
The 4 Levels of Purification include:
Ion Generation
ActivePure® Technology
Carbon Filtration
Waterproof Polypropylene Filter
https://www.beyondbyaerus.com/Site/Products
