Let’s compare climate control, display cases, and custom supports.
I get steadier results by turning the case into a microclimate — tight gaskets, Oddy-safe materials, and silica gel cassettes conditioned to your setpoint with a datalogger; ‘seal the box, not the room.’ The catch is you have to recondition the gel on a schedule or RH drifts and VOCs creep in, so test the case first. Are you aiming for 45–55% RH, and have you looked at AIC’s guidance: - American Institute for Conservation?