A foreign matter removal device (1, 1000) configured to remove foreign matters on a lens of a camera attachable so that the lens of the camera is exposed toward an outside of a panel member, the foreign matter removal device (1, 1000) comprising: a generation unit configured to generate high-pressure air; and a nozzle unit (2, 2A, 1002, 1002A, 1002B, 1002C) having: a nozzle (22, 82, 122, 1022, 1072, 1082, 1092) configured to inject the high-pressure air toward the lens; and an attachment part (21, 1021) formed integrally with the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) and attachable to a housing of the camera, wherein a tip end of the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) is positioned with respect to the lens in a state where the attachment part (21, 1021) is attached to the housing, the housing having: a first surface; a second surface continuous with one end of the first surface; and a third surface located on a side opposite to the second surface and continuous with the other end of the first surface, characterised in that in a state of being attached to the housing, the attachment part has: an opposing surface facing the first surface; a first contact portion elastically deformable in a direction away from the second surface and in contact with the second surface; and a second contact portion elastically deformable in a direction away from the third surface and in contact with the third surface. a generation unit configured to generate high-pressure air; and a nozzle unit (2, 2A, 1002, 1002A, 1002B, 1002C) having: a nozzle (22, 82, 122, 1022, 1072, 1082, 1092) configured to inject the high-pressure air toward the lens; and an attachment part (21, 1021) formed integrally with the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) and attachable to a housing of the camera, wherein a tip end of the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) is positioned with respect to the lens in a state where the attachment part (21, 1021) is attached to the housing, the housing having: a first surface; a second surface continuous with one end of the first surface; and a third surface located on a side opposite to the second surface and continuous with the other end of the first surface, characterised in that in a state of being attached to the housing, the attachment part has: an opposing surface facing the first surface; a first contact portion elastically deformable in a direction away from the second surface and in contact with the second surface; and a second contact portion elastically deformable in a direction away from the third surface and in contact with the third surface. a nozzle (22, 82, 122, 1022, 1072, 1082, 1092) configured to inject the high-pressure air toward the lens; and an attachment part (21, 1021) formed integrally with the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) and attachable to a housing of the camera, wherein a tip end of the nozzle (22, 82, 122, 1022, 1072, 1082, 1092) is positioned with respect to the lens in a state where the attachment part (21, 1021) is attached to the housing, the housing having: a first surface; a second surface continuous with one end of the first surface; and a third surface located on a side opposite to the second surface and continuous with the other end of the first surface, characterised in that in a state of being attached to the housing, the attachment part has: an opposing surface facing the first surface; a first contact portion elastically deformable in a direction away from the second surface and in contact with the second surface; and a second contact portion elastically deformable in a direction away from the third surface and in contact with the third surface. a first surface; a second surface continuous with one end of the first surface; and a third surface located on a side opposite to the second surface and continuous with the other end of the first surface, characterised in that in a state of being attached to the housing, the attachment part has: an opposing surface facing the first surface; a first contact portion elastically deformable in a direction away from the second surface and in contact with the second surface; and a second contact portion elastically deformable in a direction away from the third surface and in contact with the third surface. an opposing surface facing the first surface; a first contact portion elastically deformable in a direction away from the second surface and in contact with the second surface; and a second contact portion elastically deformable in a direction away from the third surface and in contact with the third surface.