 You can build a compact air quality monitor with an 80-feet feather and circuit python. This is powered by the 80-feet feather ESP32-S2 with a reverse TFT and uses two environmental sensors. It's got a PMSA003i sensor for monitoring the particular air quality around you in the SCD41 CO2 for monitoring CO2, temperature and humidity. Sensor data is displayed on the color TFT so you can easily read sensor values like the particulate matter, CO2 levels, temperature and humidity. Everything is housed in a compact 3D printed enclosure with swappable faceplate so it can be used as a desktop monitor or a portable wearable. New Pixel LEDs light up as a visual cue letting you know the PM2.5 air quality levels in the area. The built-in ventilation allows for proper airflow so you can get accurate sensor readings. Take this on the go and monitor the environment when exploring your new destination. Circuit Python makes it easy to display sensor data on a TFT screen with ready-to-use drivers and libraries. You can turn this into an internet connected project with Adafruit IO and log your sensor data to a custom dashboard. To get Circuit Python on your dev board, head on over to circuitpython.org and search to download the latest firmware. You can get the parts from Adafruit to build this project, links are in the description. Download and 3D print the parts in your favorite filament to build the snap fit enclosure. Start by mounting the PMSA003i sensor to the 3D printed bracket with machine screws. A short STEMAQT cable connects the feather to the sensor and a JST cable plugs into the NeoPixel stick. Then secure the feather and NeoPixel PCBs to the mounted bracket with screws. A separate bracket secures the SCD41 CO2 sensor to the back of the bracket. The whole assembly can then be installed into the 3D printed case along with your choice of faceplate and back cover. An additional bezel for the TFT display snap fits and keeps electronics dust free. This faceplate features slots for strapping on a wristband so you can wear it. We brought this on a trip to Galaxy's Edge and gained lots of insights from the sensor readings. It was really interesting to see the air quality change when moving between locations. We hope this inspires you to use circuit python and parts from Adafruit to build your next environmental project.