Citizen Air Sensors Screensaver
The Citizen Air Sensors screensaver shows pM2.5 readings from Sensor.Community, the volunteer network of self-built air quality sensors, gathered key-less by the pipeline. It's free, runs in your browser, and ESC exits.
How the Citizen Air Sensors screensaver works
The saver reads the source described above and draws it on a canvas — no account, no tracking.
PM2.5 readings from Sensor.Community, the volunteer network of self-built air quality sensors, gathered key-less by the pipeline. These are hobbyist devices on balconies rather than reference monitors, and the network is dense wherever people happened to build them.
It refreshes on a schedule, so what you see stays current.
Colours and any options can be changed in settings; nothing is stored beyond your own browser.
A worked example
PM2.5 readings from Sensor.Community, the volunteer network of self-built air quality sensors, gathered key-less by the pipeline. These are hobbyist devices on balconies rather than reference monitors, and the network is dense wherever people happened to build them.
Settings & tips
- Accent and Background recolour the display.
- Every value on screen comes from the live source — nothing is simulated.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from the source named on this page and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes — free, no download, in your browser.