I designed a wall mount with separable base for a cheap air purifier I bought from amazon.
In addition to a wall mount piece (air_purifier_wall_mount.stl) and a plate that sits on top (air_purifier_base_with_hex_holes.stl), I also provide fillers for the hex holes in case you only want to use a screw to fix the wall mount to the air purifier base (without additional nuts).
The author marked this model as their own original creation.