There are extensions on Firefox for Android that do this for you. I think it’s very accessible.

Give me a way to pay them with my money, without financing the 3rd yacht of a middle man. But I don’t look at stupid ads. You call it stealing? I don’t fucking care, I’ll do it anyway. Sue me :)

If you say Ritalin, you mean the “normal” version without extended release, right? It is individual how many hours Concerta has an effect, but it’s roughly 7-10h.

How much mg of Ritalin do you take in 7-10h in total? That is roughly the dosage you need for Concerta.

Although I have ADHD, I do prefer making a phone call, when I need something urgently. Especially if I deal with a company or a service provider e.g. party location/dj/photographer for our wedding party or whatever. I’m always anxious that they don’t read or answer my message in time

Thanks for the recommendation. That is pretty pricey but if it works, that’s fine. Though probably not feasible to have in every room then :D

But I assume it also needs periodic recalibration for the CO2 sensor, right?

Sorry for the late reply. That photacoustic one looks interesting. I have no issue with an extensive initial calibration when it then just works without me needing to take care of it regularly. Thank you :)

Do you have a suggestion for a good air quality sensor (especially for CO2 and VOCs) that outputs reliable results, works over ZigBee and is preferably battery powered? I had a CO2 sensor once but that needed to be calibrated outside really frequently so I stopped using it.