I have lots of little noises for various things that trigger via Home Assistant. Like when outdoor air quality spikes, I get one noise (usually neighbor having a cigar, leaf blower nearby, someone with a wood stove, etc.) If indoor air quality spikes I get another one (dry shampoo, burned pancakes, etc really set it off).
During fire seasons, balancing CO2 with PM2.5 is hard. Best move after many days was to put the box fan with filter in the window to blow filtered air in. I figure it's basically a mini version of those huge HVAC intake fans on skyscrapers.
Home assistant talks to the stations over MQTT over local wifi, no cloud, remote access over vpn when needed. Lots of fun! Happy to see fancier and better put together packages like this out there to spread the joy of ambient air quality monitoring.
https://partofthething.com/thoughts/weather-and-air-quality-...