The Fan/Retro Fan is a furniture item in Nintendogs + Cats that can be bought from Modo Home for $70 in all versions. It can be placed in one of the four corners of your home.
In all versions, it must be unlocked with 450 Owner Points or by playing 4 days.
3DS (NTSC): "This retro fan is far more stylish than it is functional."
3DS (PAL): "This cool retro fan is far more aesthetic than functional."