DC1100 Pro air quality monitor by Dylos Corp.

I love how easy it is to read the data to show me how much dust molecules are in the air. While it's not fancy, doesn't have an app, or any of the new technology that we are accustom to, it gets the job done easily and at the end of the day, that's all that matters. Of note, there are two models of this, the Pro, and the non-pro. I ordered the pro, so make sure you know which one you are ordering before placing your order.