CO2 poisoning is very common. It leads to fatigue, headaches/migranes and concentration issues. Most people don't recognize it and try to cope with caffeine & pain killers.
I noticed that sitting in a tightly closed office surrounded by monitors , CO2 was being trapped around me . I started testing with blood oxygen monitor and could reliably predict low blood O2 based on the above symptoms.
tl;dr keep your door and/or windows open and use a fan to circulate air into your desk area. It's very easy to reach high CO2 concentrations in a small room when you are surrounded closely with monitors (flat surfaces)
I noticed that sitting in a tightly closed office surrounded by monitors , CO2 was being trapped around me . I started testing with blood oxygen monitor and could reliably predict low blood O2 based on the above symptoms.
tl;dr keep your door and/or windows open and use a fan to circulate air into your desk area. It's very easy to reach high CO2 concentrations in a small room when you are surrounded closely with monitors (flat surfaces)