According to Jonathan Kamens :

Second, I doubt the extra humidity in the room would be an
issue, because humidity is usually much lower in the winter
when you would want to reclaim heat from the dryer.

Hi Jon,

It depends on the circumstances.

Left for work with firm instructions to the SO to "leave the laundry door
open when you run the dryer!".

Half way thru the day, she called me in a panic because all the wallpaper
in the laundry room was sliding off the walls.

She forgot to keep the door open.

She remembers now ;-)
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.