Total versatile organic compounds (TVOC‘s) are harmful carbon based compounds that easily evaporate at ordinary room temperature. To rise awareness of TVOC‘s in the air, we created a clock that helps detecting a change of air quality over time. 

It also shows the historical readings of the last few days so you can compare data easily and find the source of quality changes. The clock is visualizing the shifting states by drawing a two dimensional graph, that increases when there are more TVOC‘s and decreases if the readings lower again. 

The graph is drawn over a full day and then gets added to the history in the center of the clock. There you can see the last 3 days individually and the average air quality.