AeraMax Pro is designed to complement HVAC systems by filtering air at the source of the contaminant. Also, most HVAC systems do not utilize HEPA filtration, which captures airborne contaminants as small as 0.3 microns including viruses, bacteria, and other airborne contaminants. HVAC systems may not have activated carbon filters to remove odor and volatile organic compounds, or bipolar ionizers to reduce airborne contaminants.