[raudette]

General feedback: - I want something like this - I have built crude air quality monitors (sensors + micro-controller) but would prefer something I can buy - I love the openness - I love the form factor. I would like the ability to carry it around, the loop on this is great. eg: what is this meeting room like after 45 minutes? - Would like to see PM2.5 - the AirGradient is probably closer to what I want

[Havoc]

PM2.5 is quite challenging to miniaturize for a mobile & compact form factor like this - you need a fan of some sort.

[formerly_proven]

Not necessarily: https://www.bosch-sensortec.com/products/environmental-senso... (fits in an USB key: https://www2.purpleair.com/products/purpleair-pixel)

[Havoc]

Oh that's fun. Been meaning to get PM2.5 for my place but the one I've got has a whiny fan

Thanks for linking