Final purchase to improve my air quality in These Trying Times: I bought indoor and outdoor air quality sensors: https://www.airgradient.com/ Air Gradient is a small Thai company making open source software and hardware. Shipping and customs from Thailand wasn't too very bad considering, and I think the price of their kits is fair. I'm not excited about having to measure my air quality, but I'm thankful that companies like this are out there. #foss #climate