“Bi-Polar ionization technology proved to be efficient in sanitizing the indoor air and reducing the PM2.5 and mold concentrations. This ionization technology could be promising to decrease the incidence of allergic rhinitis, asthma and other extensive lung conditions in the future.”
“These examples demonstrate that appropriate indoor air purification systems, such as media filtration coupled with either gas sorption or bipolar ionization, can allow for reduction in outdoor air intake rates by 40-75% while maintaining acceptable levels of indoor air quality…For example, the use of bipolar ionization coupled with media filtration in commercial HVAC systems has resulted in annual operating savings ranging from $1,000 to $50,000 to as high as $140,000”
"The virus that causes COVID-19 is approximately 0.125 micron (125 nanometers) in diameter. It falls squarely within the particle-size range that HEPA filters capture with extraordinary efficiency: 0.01 micron (10 nanometers) and above."