If it runs out of water humidity will drop too 10% is that too low?
Wow that must be some humidifier if it keeps humidity at 45% while exhaust fans on and drops to 10% if humidifiers off.
I wouldn't suggest letting it drop to 10%
You plant just seemed a little droopy and sad?
Is it overwatered maybe?
Possibly not evaporating out of their leaves? Too much VPD? I dont know just throwing some ideS out there. Didnt mean to hijack the photo thread