Earlier quoted context omitted.
I don't have any clothes as old as yours though for sure, but line drying generally helps your clothes last longer. I'm so glad I live in Colorado. It's a warm winter, but it takes like 3 hours to dry stuff on the line (especially synthetics). Of course that means all my synthetic fibers are literally billowing into the air I guess. Still, we've been going without a dryer for about five years now and I've had no regr…
My strategy forever is to wash all my shirts, put them in the dryer on low for 5 minutes, then hang them all up in a doorway overnight. My clothes last much longer this way and never get wrinkled.
or have any cracks for air to enter the door or doorjam,
that 90% relative humidity should be no problem!