Re:Air Quality Monitors Compared: AirGradient vs. Purple Air
by poulpy123 on Wednesday May 15, 2024 @02:32PM
(#40370636)
Mine is indeed not perfectly calibrated since it sometimes gives value that are lower than the outside air, but the scheme of things, being off by 20 or 50ppm isn't going to change anything
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Re:Air Quality Monitors Compared: AirGradient vs. Purple Air
by pstrateman on Wednesday May 15, 2024 @03:19PM
(#40371179)
If you're getting values lower then atmospheric then the readings are if by much more than 20 to 50 ppm.