Indoor air quality tester

[burnt03]

Just wondering if anyone has used some sort of tester for air quality in their homes... I’ve never noticed anything out of the ordinary but would like to check into it.

What parameters would be most useful to test for?
Thanks!

 

[mar13]

I know an indoor air quality engineer who uses Purple Air device. Both an indoor only and an indoor/outdoor versions. Happy with both,though I don't have one myself. I find the purple air web maps helpful for wildfire smoke monitoring and temperatures. See purpleair.com