There are several synonyms for "wallpaper cleaner," including wall cleaner, interior cleaner, and stain remover. These are all products that are used to clean and maintain the appearance of walls, removing dirt, stains, and other marks that can accumulate over time. Many of these cleaners are multi-purpose, meaning they can be used on a variety of surfaces besides wallpaper, such as painted walls, wood, and tile. Depending on the type of wallpaper or surface that needs to be cleaned, there are also specialized products, such as liquid wallpaper removers, that can help eliminate stubborn stains or adhesive residue. Overall, using a wallpaper cleaner or similar product is an important step in keeping your home looking clean and fresh.