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How Kaiterra’s Sensedge Meets WELL Certification Requirements

Because of the popularity of the WELL certification program, we’ve naturally received some inquiries about how the Sensedge meets WELL requirements.

The Sensedge is fully compliant with the WELL certification program. To illustrate, we’ve provided a side-by-side comparison of WELL’s air quality monitoring requirements and the Sensedge’s continuous monitoring capabilities below:

WELL Requirements   Sensedge Compare
A01, A08* PM2.5 accuracy 5 μg/m³ + 15% of reading at values between 0 and 150 μg/m³ ± 10% (<30 μg/m³: ± 3 μg/m³) between 0 and 1000 μg/m³




A01, A08* TVOC accuracy 20 μg/m³ + 20% of reading at values between 150 and 2000 μg/m³ ± 15% between 0 and 9999 ppb checkmark
A08* CO2 accuracy 50 ppm + 3% of reading at values between 400 and 2000 ppm ± 3% ± 50 ppm between 400 and 2000 ppm checkmark
A08 Sensor calibration Monitors are recalibrated or replaced annually No calibration needed - simply replace the modules checkmark
A08 Measurement intervals Measurements are taken at intervals of no longer than 10 minutes for PM and CO2 and no longer than one hour for other pollutants One minute checkmark
A08 Environmental measures display  Real-time display of air pollutants  7’’ Full Color Touchscreen Display checkmark

*For WELL, you only have to measure three of the above air pollutants at once to meet the A08 air quality monitoring requirement.

Kaiterra's Sensedge monitors three air pollutants at once (PM, CO2, and TVOC), and it also measures temperature and humidity so you can maximize the comfort of your project. The Sensedge can also be equipped with additional sensing parameters for continuous monitoring of ozone, nitrogen dioxide, carbon monoxide, and more.


Because of its modular design, the Sensedge itself does not need to be calibrated. Rather, you only need to remove the sensors and replace them with new ones. The previously weeks-long process of calibration only takes seconds with the Sensedge, and it fully meets WELL’s calibration requirements.

To learn more about how the Sensedge can help you earn a WELL certification, reach out to our team below!

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Kaiterra is a global company on a mission to end air pollution. We make air monitors that empower people to make small changes in their everyday lives and help with researchers, NGOs, and governments around the world to end air pollution at the source.