The categories answer different questions: air quality monitors use one or more sensors to estimate specific pollutants or environmental factors such as particulate matter, carbon dioxide, volatile compounds, temperature, or humidity; anti-dust mite devices target dust-mite exposure through barriers heat humidity control or other defined mechanisms.
The central contrast involves different mechanisms. For air quality monitors, examine sensor target and averaging interval; for anti-dust mite devices, examine mite reservoir and encasement. Features should enter the decision after the practical objective is established.