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Best reply on the thread was: Now show us what 20-30 students in a single classroom does to air quality. I went to a brand new high school in 1992. There was a
by ideonexus 8y ago
Best reply on the thread was: Now show us what 20-30 students in a single classroom does to air quality. I went to a brand new high school in 1992. There was a phenomenon of a few students passing out here and there. It was discovered after the first quarter that no one had opened the vents to the outdoors and the building was circulating the inside air around.
There are several comments about personal AQI sensors. Can anyone recommend an affordable one? Mostly for scientific curiosity.
- NullPrefix 8y agoPulling external air reduces thermal efficiency. All was accounted for.
- kittiepryde 8y agoIt's normal for CO2 to be measured and outside air to be fed into the HVAC system to compensate. If you don't have sensors you should be running off an occupancy schedule, and assuming a full load of students in each classroom while occupied to calculate your required makeup.
- jcims 8y agoWould be interesting to get a little robot to walk a building and sample air quality to find dead zones where there isn’t good replenishment.
- boulos 8y agoThe folks at Awair make a nice line of reasonably accurate monitors for common things (CO2, VOC estimate, temperature, humidity, etc.) with lots of historical data and good smoothing. They also have great support if you suspect a faulty unit. By contrast, you can get a more professional counter from Dylos, but then you’re on your own for all the work beyond it just being a sensor. That said, I’m more confident in the pm2.5 and pm10 data from a Dylos than the plug-in socket Awair.