Are vinyl decals and wallpapers suitable
The good news is that you can use wallpaper in the bathroom, but it needs to be a specific type. You're looking for wallpapers that have a vinyl coating which will deflect any moisture.
Coated paper is paper which has been coated by a compound or polymer to impart certain qualities to the paper, including weight, surface gloss, smoothness or reduced ink absorbency. The coating formulation may also contain dispersants and resins to give water resistance and wet strength to the paper or to protect against sunlight.
In fact, it can be the best option for a wallpapered bathroom as vinyl can
withstand wiping and water better than standard wallpaper.
Every environment can differ, so if you are unsure, please check with your supplier or order a product sample and try it out in your bathroom before buying the full design.