A nebulizer kit includes a case body, a flow channel formation member that covers an opening in an upper area of the case body, and a cylindrical aerosol discharge port that passes through a portion of the top surface of the flow channel formation member located toward the outer edge thereof. The case body and/or the flow channel formation member includes a rotation mechanism that, when the case body has overturned and the aerosol discharge port has become positioned on the lower side in the vertical direction of the top surface of the flow channel formation member, causes the case body to rotate in a circumferential direction to cause the aerosol discharge port to move away from a lower side in the vertical direction. Even if the nebulizer kit has overturned, a liquid within the nebulizer kit is prevented from spilling.
