Spray? Shit...I soak mine. Ambient RH is in the 30's here. My beads never absorb. They always output. I fill a drinking glass with distilled, then dunk my tubes. I shake the excess off, then put them back in. That lasts me about 2-3 weeks.
I'm going to take the opportunity to "answer" the gazillion hygrometer questions. Whether yours reads right on the money or not is not as important as watching when they start to drop. That is what I'm watching. Dropping RH tells me its time to recharge my beads. Otherwise, I trust the beads.
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