3 ms·
> Room air is much more polluted than outside air On the contrary, particulate "nitrogen dioxide (NO2) and oxides (NOx), ozone (O3)" is at its maximum around b
by throwaway29389 6y ago
> Room air is much more polluted than outside air
On the contrary, particulate "nitrogen dioxide (NO2) and oxides (NOx), ozone (O3)" is at its maximum around busy roads.
In a room it decades quickly if you block airflow.
I have a PM detector and I can see that every day.