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Documenting air quality, making my own IAQ sensors and trying to make IAQ accessible. By Chris Ridley

Indoor Air Quality

Building my own indoor air quality (IAQ) sensors – finally!

June 11, 2026
I Measured My Bedroom CO₂ Overnight – Here’s How It Compares with the Research

June 11, 2026
Particulate matter, climbing chalk and workplace exposure tables for climbing gyms.

June 11, 2026
Everyone’s worried about damp. Too-dry air might be the winter problem nobody’s watching.

June 11, 2026
Your gas hob is quietly polluting your kitchen – here’s what a purifier actually does about it

June 11, 2026

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