Many toy haulers have a solid wall with a door that separates the garage space from the main living area. This solid wall is frequently referred to as a “vapor wall” since its main purpose is to reduce any fuel fumes or smells from entering the main sleeping and living area. As another precaution, the flooring material in the garage is usually constructed with petroleum-resistant material, so as not to absorb spills. Another toy hauler garage feature intended to help reduce fuel vapors is sidewall vents located at the top and bottom of the garage to help clear out fumes.