HEPA filters are designed to trap particles down to 0.3 microns and viruses are much smaller than that. Studies show that viruses penetrate HEPA filters. Studies also show that microbial contamination can grow on HEPA filters and they themselves can become a source of microbial contamination.
Virsukiller technology is designed to kill all viruses and our test results show a kill rate of 99.9999% on a single air exchange.

Note: The HEPA filters used in the Radic8 technology are positioned before the reactor chamber, therefore anything that passes the HEPA filter is destroyed in the Radic8 reactor chamber.