It's also notable that CO2 sensors utterly suck, none of the consumer ones do ab...

		RL_Quine on Feb 26, 2021 \| parent \| context \| favorite \| on: The Cuboid: A DIY air purifier that's better than ... It's also notable that CO2 sensors utterly suck, none of the consumer ones do absolute measurement, they assume a baseline and calibrate their output to that.