When using an AIR device indoors and having it set as Indoor, I understand that the CL system is largely turned off except for maybe barometric pressure. Is the factory calibration for humidity reasonably close or would it be a good idea to set it outside every so often, possibly next to another AIR, and let it calibrate before bringing it indoors? If so, how often would be a good interval to do this?
Assuming your indoor environment doesn’t see RH values above 85% or so very often, your calibration should be fine. The RH sensor is subject to drift primarily when exposed to extended periods of high humidity.