Aeroshi home-air guides
Make sense of your rooms before you spend more money on them.
Practical explanations of what room readings can show, what they cannot prove and how to test whether a change actually helped.
No scare tacticsPrimary sourcesPractical next steps


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Bedroom ventilation6 min read
Why does my bedroom feel stuffy overnight?
Use repeated occupied nights and room comparison to make sense of CO2 ventilation context.
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Humidity and condensation
Dehumidifier or ventilation: how can you tell what is helping?
Separate moisture removal from fresh-air exchange, then test the result under comparable conditions.
7 min read

Monitor readings
What does an indoor air-quality monitor actually measure?
A plain-English guide to CO2, particles, humidity, temperature, VOC and NOx indices - and their limits.
8 min read

Room comparison
Why compare two rooms instead of using one monitor?
Use a second room as context to separate local patterns from wider household conditions and unusual days.
6 min read
Your own home is different