It really comes down to what you mean by humidity. “Dew point” can be negative, but humidity cannot.
“Negative humidity” is like saying “this glass has so little water in it, it has negative water”.
Modern_medicine_isnt@lemmy.world 2 weeks ago
Doesn’t SoCal sometimes have negative humidity? 20% seems pretty high to say it works in the desert.
KairuByte@lemmy.dbzer0.com 2 weeks ago
Modern_medicine_isnt@lemmy.world 2 weeks ago
Weather channel negative humidity… either way, it’s a far cry from the 20% this thing seems to be designed for.
Tattorack@lemmy.world 2 weeks ago
Yes. I drink it and I actually lose water.
pulsey@feddit.org 2 weeks ago
Humidity cant be below zero, it measure how much water is in the air.
Modern_medicine_isnt@lemmy.world 2 weeks ago
I think technically what we call humidity is actually relative humidity, so it can go below zero. Ture humidity can’t of course.
Malfeasant@lemmy.world 2 weeks ago
“relative humidity” is the percentage of water the air holds relative to how much it could hold, which varies by temperature. It can’t go negative, though it can go over 100%.
Modern_medicine_isnt@lemmy.world 2 weeks ago
I looked it up. It is something to do with how the sensors work. Under certain conditions they will report negative. Either way, the point was, I don’t see this machine being able to do much if it needs around 20%…