[yboris]

Thank you for sharing these two videos! I really like the 1st one with the air-quality-measuring-instrument.

[chewz]

You welcome.

You can also make DYI air-quality instrument on a cheap using SDS011 sensor and Raspberry Pi. [2]

[1] https://aqicn.org/sensor/sds011/

[2] https://www.raspberrypi.org/blog/monitor-air-quality-with-a-...