Interesting. I will try to find that sub article. Maybe open-offices that can’t install ERVs can use rebreathers instead? I was reminded of this hackaday proj

Interesting. I will try to find that sub article. Maybe open-offices that can’t install ERVs can use rebreathers instead? I was reminded of this hackaday project... https://hackaday.com/2018/05/29/monitoring-air-quality-one-sleepy-meeting-at-a-time/ https://hackaday.com/2018/05/29/monitoring-air-quality-one-s...