Awair Element

Awair Element provides the most complete sensor array in this comparison: CO2 (NDIR), VOC (Sensirion SGP40 index), PM2.5 (laser), temperature, and humidity, plus the Awair Score composite dashboard and HomeKit/Alexa/Google Home integration. API access enables Home Assistant and Node-RED integrations at 300 calls per 5 minutes on the free tier. Available from major online retailers. the Awair Score composite hides which sensor is degraded — a score of 70 could mean elevated CO2, elevated PM2.5, or uncomfortable humidity; VOC readings are a relative index, not absolute TVOC concentration; HomeKit integration is cloud-dependent and breaks after router reboots until the app is manually relaunched; it is more expensive than Govee or Inkbird without a proportional accuracy advantage in CO2 or PM2.5.

The Awair Element is the only monitor here that genuinely fits into a smart home stack. Five sensors — NDIR CO2, Sensirion SGP40 VOC index, laser PM2.5, temperature, and humidity — feed both the Awair Score composite dashboard and an HTTPS API capped at 300 calls per 5 minutes on the free tier, which is enough to wire it into Home Assistant or Node-RED without paying. HomeKit, Alexa, and Google Home all work, with the caveat that integration runs through the Awair Home app bridge rather than native HAP, so router reboots break HomeKit until the app is relaunched. The composite Awair Score hides which sensor is degraded — a 70 could mean elevated CO2 or elevated PM2.5 — so check the individual readings, not just the dashboard number.

▶ Video review

Awair Element Air Quality Monitor - Hands-on Review (+Sensor Test)