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August 18, 2026 at 5:22 pm #30460
David White
Participant

I should add to this that, this morning – after initial clear skies – a huge fog rolled in here (we are proximate to the water in Puget Sound, WA USA). I notice that the outdoor Smoggie is showing RH at 81.48 and the Purple Flex is showing only 61. It happens that we had all of our windows open while this change was occurring. So both our indoor Smoggie shows 73.74 and our completely analog hygrometer shows 79. So it appears that it is the Purple Flex which is possibly off-kilter.