It is necessary to provide a clean manufacturing environment, e. g., clean machinery and work areas in order to achieve optimal production results. Although brooms, mobile vacuum cleaners and blowing with compressed air are the most commonly used cleaning methods, they are not the most current form of cleaning technology. Especially during blowing with compressed air are several persons exposed to dispersed dust. This made the legislation impose a so called "blow-ban" for various industries. Keller Lufttechnik offers numerous stationary vacuum units that cost-effectively enhance productivity and efficiency, and require low maintenance.