Green Products Otis’ environmentally friendly Gen2™ belted, machine-roomless elevator system sets the standard for elevator performance, efficiency and comfort. The Gen2 system’s flat, polyurethane belts and permanent magnet gearless machine do not require any additional lubrication, eliminating the need for storage, cleanup and disposal of hazardous waste. The Gen2 system is up to 50 percent more energy efficient than conventional elevators. And it delivers a smooth, quiet ride. In addition, rapid installation methods save contractors time and reduce construction costs.