A system for generating and inhaling vapor of herbs includes a container, a base, a mouth, and an upper surface. An aperture in the surface displaced from a lip of the mouth. The container shown partially filled with water, and a diffuser positioned upon the water. The region within the container above the diffuser defines a vapor chamber. A diagonally-oriented tube includes upper and lower end secured within the aperture. Herbs are placed in an upper end of an herb-burning bowl and a lower end of the bowl having a filter limiting debris from entering the water. An inhalation cylinder having upper end attachable within an open mouth. A vacuum pump includes vacuum input from cylinder and positive pressure output about a level of the vacuum input. The pump providing pressure from bottom to top of the inhalation cylinder and the water surface diffuser to the mouth.