A sleep apnea prevention assembly that includes an oral appliance that includes upper and lower members that are hingedly attached to one another and movable between an open position and a closed position. The upper and lower members cooperate to define a central opening when the oral appliance is in the closed position. A flexible lip seal extends between the upper and lower members and the assembly includes a main pipe assembly that comprises a main pipe and a mouth air vent. The main pipe is secured to one of the upper or lower members and extends through the central opening. The mouth air vent has a breathing opening at a proximal end of the main pipe assembly. The main pipe assembly includes an elbow receiver opening at a distal end thereof, and a mouth air path is defined between the breathing opening and the elbow receiver opening.
