Health

Indoor air is measurable, and once you measure it you tend to find something worth fixing — a bedroom that climbs past 1,400 ppm of carbon dioxide overnight, a bathroom that stays damp long enough for mould, a kitchen that spikes particulates every time someone fries an egg.

This category is about the numbers that matter to how you feel, what a sensor can and cannot tell you, and the small automations that quietly improve sleep and air quality without anyone having to remember anything.

Articles in this category

1. Indoor air quality: what to measure and what the numbers mean

   A monitor showing red is not useful. A monitor showing 1,400 ppm, and a person who knows what that means, is.

   6 min read · 1,328 words · Reviewed October 2026

2. Sleep and the smart home: what helps, and what is oversold

   Technology will not fix insomnia. It is good at removing the environmental obstacles — light, temperature, air and an inconsistent routine.

   6 min read · 1,416 words · Reviewed October 2026

3. Damp and mould: three numbers that explain the whole problem

   Mould in a corner is not a hygiene failure. It is a measurement telling you that surface is below the dew point of the air in the room.

   7 min read · 1,488 words · Reviewed July 2026

4. Allergies and asthma at home: what the evidence actually supports

   Some popular interventions have repeatedly failed in trials. Identifying the trigger first is what makes the rest worth doing.

   6 min read · 1,451 words · Reviewed November 2026

5. Working from home: the environmental fixes that matter

   A stiff neck, tired eyes and an afternoon slump are largely environmental rather than personal. The fixes are cheap and the measurement is easy.

   7 min read · 1,468 words · Reviewed June 2026

6. Noise and light: the low-grade stressors worth measuring

   You adapt to both, which is why they go unaddressed for years. Neither is as hard to reduce as people assume.

   6 min read · 1,458 words · Reviewed July 2026

7. Helping an older relative stay at home: sensing that respects dignity

   Families install cameras because cameras are what you can buy. The questions they actually have almost all have less intrusive answers.

   7 min read · 1,472 words · Reviewed November 2026

8. Pets and the smart home: what helps, and what to be careful with

   They cannot open a window, adjust a thermostat, or tell you the siren terrifies them. A connected home can improve their lot and also make it worse.

   6 min read · 1,404 words · Reviewed July 2026