Review on IAQ Mini CO2 Desktop Monitor by Matthew Baltimore

Like many others this year, I returned to work in a closed office with no opening windows. I've added this to my personal arsenal to reduce the risk of exposure, as well as a HEPA air filter for my workplace. I have a role in requesting adjustments to our office ventilation systems so this is a tool to let us know where adjustments need to be made. An ASHRAE scientist I've followed on Twitter mentioned the use of CO2 monitors to help workplaces determine if there is enough air exchange in a given space, and that's where this little device comes in. It needs to be plugged in to work, which is the only negative. I thought about it - I wanted a portable CO2 monitor so I could take it to conference rooms, shared break rooms and other places where air exchange is difficult to measure when there are actually a lot of people there. My workaround was to use the included USB and plug it into the power bank I usually use for my phone. This makes it portable but a bit bulkier than we'd like. Either way it works, and if there's a free USB port I plug it in instead. The display is sharp, responsive, and quite surprisingly responsive to changes in air quality (but not surprising, when you think about it). Ways. For example, the difference between keeping the door open and keeping it closed was greater than I could imagine in a closed office. I feel better knowing that CO2 levels are low in places where I meet with other employees, and I can see a visual cue when we need to get some fresh indoor air or break up the group.