[Ashish Choudhary] married an Arduino with a display and a pollution sensor to give readings of the PM2.5 and PM10 levels in the air.

Programmable-Air consists of a built-in high-pressure pump, vacuum pump, pneumatic valves, pressure sensor, and an Arduino Nano.

If you have allergies than you've likely considered picking up an air quality sensor for you house at some point. However, a good air quality monitor will run you upwards of $290.