How do you get it up to 65% humidity on lockdown then?
ETA: I don't like the idea of restricting fresh oxygen at my altitude.
I never close the vents.
This thread is a good one you might want to join. Ruby found some stuff to help with humidity... Just posted about it in the last day or two
https://www.backyardchickens.com/t/...co-thread-hatches-etc-pics/1320#post_16660328