On: Why aren’t we talking more about airborne transmission?

[newsbinator]

Is there a reliable portable Co2/Pm2.5 logger?

I've heard the accuracy on the Pm2.5 ones at least is way off.

I just moved to a place where I need to keep an eye on Pm2.5 in particular.

[graeme → newsbinator]

It doesn’t log pm2.5. Only co2. For pm 2.5 I recommend a laseregg