Asalamualaykum. Is it permissible to pray in a shower room (no toilet). Like praying in the landing area of the shower room (where you change clothes). It has partition with the actual shower area (either glass, pvc, or other material). Jazakallahkhair.

Ustadh AbdulAziz al-Haqqan

Only if there is a dire dire need for it in which u can't pray at any other place because it is dangerous for you.