UV-C air purification uses germicidal ultraviolet light installed inside your HVAC system to inactivate viruses, bacteria and mould as air passes through — sterilising the air your building already circulates. It doesn't cool or filter the air; it disinfects it, working alongside your existing air conditioning and filters.
How in-duct UV-C works
A UV-C system such as Fresh-Aire UV is fitted inside the air handler or ductwork of your existing HVAC. As air circulates, it passes the UV-C lamp, which inactivates a large share of the airborne microorganisms and helps keep the cooling coil free of mould. Because it retrofits into the system you already have, there's no need to replace your HVAC.
What it does — and doesn't — do
UV-C reduces airborne viruses, bacteria and mould as air moves through the system, and some configurations add ionisation or help break down odours and VOCs. It is not a substitute for fresh-air ventilation or particle filtration; it complements them. The strongest results come from combining ventilation, good filters and UV-C together.
Where UV-C helps most
It's especially valuable in healthcare, offices, hospitality and schools — anywhere occupants share recirculated air and wellness matters. Fresh-Aire UV comes in the APCO-X retrofit, the higher-intensity Blue-Tube, custom AHU integration, and an ENHANCE-ION ionisation option, and it supports WELL building standards for air. See practical steps for improving office air quality.