How Tecnobosque frames the subject

Wildfire smoke is a changing mixture, but PM2.5 is one of the most useful operational indicators for health-oriented air-quality communication. Outdoor concentration does not equal indoor concentration: infiltration, air exchange, building leakage, filter efficiency and recirculation all matter. CADR describes clean-air delivery, while ACH describes an air-change rate; neither alone guarantees a target indoor concentration. During outages, purifier performance becomes linked to battery capacity, inverter losses and critical-load planning.