Our cleaning crews purchased a vacuum that is has a built-in design feature to protect/safeguard for facilities from damage. The brochure states: 'Reduce possible damage to the facility and/or merchandise with durable polyethylene construction that bends and gives.' This is not a bumper or roller as listed in LEED requirements, but it is a safeguard to protect facilities. Will this pass review? It meets all other requirements: CRI Green Label Plus, 69 DBA, etc.