01Gold Standard
Element
$150
CO2PM2.5smart-home
Monitors CO2, PM2.5, VOC, humidity, and temperature. Best display—readable across room. Baseline accuracy verified by Air Purifier First testing.
Quality Score11/12
Purity
Evidence
Transparency
Value
Moderate Evidence
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Ingredients & Purity
Sensors for 5 key air quality metrics.
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Scientific Evidence
Passed baseline accuracy tests for PM2.5 and CO2.
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Brand Transparency
App shows historical data. Sensor calibration info less detailed than ideal.
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Value Assessment
$150. Good value for multi-sensor unit with quality display.
Why Not Alternatives?
Airthings Wave Plus has no PM2.5 sensor. Temtop is accurate but no smart home integration. This balances accuracy with usability.