Hacker News new | ask | show | jobs
by txprog 2375 days ago
Shameless plug here. I'm working for https://cozyair.fr - keeping a good indoor air quality is good for both the user but also the the building.

CO2 is not the only factor you should look at, PM are also dangerous when you cook, or when there is outside pollution. NO2/O3 is an outdoor air pollution that we watch. Because the only way to get out the CO2 is ventilation / open your windows for a few minutes. But it can bring another kind of pollution depending your area.