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The hidden cost of air quality monitoring
The hidden costs of air quality monitoring, including subscriptions, locked data, proprietary modules, and the long-term price of closed ecosystems.
AirGradient Blog
Seven million people die every year due to air pollution. Monitoring air quality enables people worldwide to better protect themselves.
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Visit airgradient.com → RSS feedOn Hacker News Dec 2021 – Aug 2025
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What we learned making a plastic injection mold with a Chinese mold maker
What AirGradient learned while making a plastic injection mold in China, from DFM and tooling quotes to samples, revisions, and production risk.
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Ikea Vindriktning Air Quality Sensor Review and Accuracy
How accurate is Ikea's Vindriktning air quality sensor? This review covers PM2.5 behavior, limitations, and how it compares with better monitors.
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Low Cost CO2 Sensors Comparison: Photo-Acoustic vs. NDIR
A comparison of low-cost CO2 sensor technologies, explaining photo-acoustic versus NDIR designs and the tradeoffs behind each approach.
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Air Quality Monitors from USD $169 to $6k use the same low-cost PM Modules
Why monitors priced from hundreds to thousands of dollars often use the same low-cost PM modules, and what that means for performance claims.
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Wired Called Our AirGradient Monitor 'Not Recommended' over a Broken Display
A detailed critique of WIRED's AirGradient ONE review, focusing on methodology, product understanding, and what trustworthy monitor reviews require.
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How to Determine the Error of an Air Quality Sensor?
How to calculate sensor error, compare measurements, and use metrics like RMSE to judge air quality sensor performance.