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Board hears presentation on upper‑room UVGI and aerosol tracer testing as lower‑cost air‑safety option for schools
Summary
District meeting included a vendor presentation on combining upper‑room ultraviolet germicidal irradiation (UVGI) with aerosol tracer testing to measure in‑space disinfection; presenters said the approach can be validated on site and is less costly than major HVAC overhauls.
A vendor presentation at the 3 Rivers/Josephine County School District board meeting described using upper‑room ultraviolet germicidal irradiation (UVGI) units combined with aerosol tracer testing to measure removal and inactivation of airborne particles in classrooms and common spaces.
Presenters explained the approach in plain terms and noted it relies on established research plus on‑site verification. They described releasing inert tracer aerosols in a room, measuring how much is removed by the HVAC system, and separately estimating the inactivation effect attributable to the installed upper‑room UVGI fixtures. The presenters said peer‑reviewed studies from academic institutions informed their modeling and that tracer…
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