1. Awair Element ($179) – Best multi-pollutant. 2. IQAir AirVisual Pro ($269) – Best PM2.5 + CO2. 3. Aranet4 ($249) – Best CO2-only. 4. Temtop M10 ($59) – Best budget.
AI-assisted research synthesis · human-edited by SUJI KIM · EU AI Act Art. 50 transparency
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