How do HEPA Filters compare with NASA developed AFL technology?
99% of all particles that we breathe into our lungs are under 1 micron. Most HEPA Filters can only filter particles in the air up to 0.3 microns. This means all virus can easily pass through HEPA filters as they are all smaller then 0.3 microns in size.
By contrast AFL Technology begins its real work at 0.1 micron and will work up to 0.001 micron therefore by destroying up to 99.997% of all harmful viruses, bacteria, fungi, VOC's and contaminants.