I've deployed over 30 Foobots and they've taught me a number of things:
1. If you use positive ventilation on a closed cell spray foam job with a blower door, tVOC levels stay under normal levels
2. If you don't use enough ventilation, it took the tVOC levels in one home 4 days to normalize
3. You can use them to give feedback on whether or not damper adjustments equalize temps between floors
4. tVOC was a good proxy for success with a mold sensitive client. Their CO2 levels stayed low as well with their own monitor.
5. Watch for high RH to combat mold/mildew/etc.
6. I'm trying to deploy 3/home, one on each floor. You can watch how well contaminants move around.
Unfortunately, I haven't had many clients express interest in actually buying them. For now I'm leaving them placed for a year or so. I want to watch changes between seasons. I'm learning a ton through continuous commissioning, or continuous optimization as Linda Wigington called it. After the year, I'll be moving them to other client homes. I'm hoping to find a way to get more clients to buy them, because they are great for diagnosing problems.
Here is my album of dashboard photos: http://bit.ly/FoobotDashboard
Here is my article from last summer comparing 7 of the monitors: http://bit.ly/IAQMonitorComparisonESHP
Who else is experimenting with them? Which one? What have you learned? What do you like or dislike?