This is excellent, and something we experienced simply in our own home. Two of us, the Aranet would get to over 1500. Had an ERV installed and feel better, and no more headaches.
Can't imagine meeting rooms, with poor ventilation.
Have been to a couple of public meetings, and once it starts to read over 1200 I leave now.
@czarbucks @mike_bowler I used to wake up with a bad headache (or worse, a migraine) fairly regularly and eventually figured out that it was probably high CO2 in the bedroom building up overnight. Keeping the door open seemed to help so that basically confirmed it.
Ironically this is only a problem because I'm in a new well-insulated, sealed, home. The developers didn't install ventilation because it isn't a requirement and my previous homes have had "natural ventilation" in the form of windows that don't close properly.
Yes, fairly similar here, isn't that a poor trade-off? I keep 2 windows on opposite sides of the house open a few inches during the day, year 'round.
We have an unvented gas fireplace, learned quickly not to use THAT, but also a gas range. The ERV has helped a great deal.