Patent attributes
A hand dryer includes an air-stream generating device including a device air inlet, an inner housing that accommodates therein the air-stream generating device and has an inner air inlet formed in an intake surface thereof, and an outer housing that accommodates therein the inner housing and the air-stream generating device and has an outer air inlet formed therein. An intake air passage that connects the outer air inlet and the device air inlet to each other is formed inside the outer housing to include the intake surface and an opposing surface as a portion of a wall surface thereof, and a projection is provided on the opposing surface to project from a region that is opposed to the inner air inlet towards the intake surface. The projection has a first surface facing an upstream side in the intake air passage.
