When HN users recommended it
3 HN users recommended this between 2019 and 2023, in 3 comments.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
3 HN users recommended this between 2019 and 2023, in 3 comments.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
This one has worked really well for me and friends who are also using it: https://www.amazon.de/TFA-Dostmann-AirCO2ntrol-CO2-Monitor-K...
I bought this guy for the office - works well https://www.amazon.de/gp/product/B00TH3OW4Q
100%, a $70 CO2 sensor made a huge difference for me. I live in Germany, and there is no ventilation unless you open the window. I noticed that when I worked all day in the apartment, at the end of the day my brain would be toast, I wouldn't be capable of any really important thought, and I'd have a splitting headache and feel exhausted. Now I just open the window whenever the meter turns yellow (which actually means I just leave the window open almost all the time). Here's the one I use: https://www.amazon.de/-/en/gp/product/B00TH3OW4Q