FlowFAST H-RF are weighing workbenches conceived for personnel and environment protection against powders and aerosol contamination. Despite the same structure and look of standard FlowFAST H, FlowFAST H-RF have the opposite working principle in negative pressure reverse flow mode: the whole amount of the air is aspirated from the external environment and exhausted into the laboratory after being filtered by means of an H14 HEPA/ULPA filter with an efficiency better than 99,995 % MPPS (H14 - EN:1822). BENEFITS Ergonomic Design and best space utilization: The angled sloping front shape provides optimum visibility of all objects placed in the interior workspace. The whole front of the cabinet is totally open in order to guarantee the best space available inside the working area and this solution allows the entrance of big devices (such as microscopes). Weighing accuracy 0.01 mg Work surface vibrations: 0.002 mm RMS ECS Eco Controling System: The new ECS microprocessor employs the latest innovative methods of integrated management of all principal functions of ventilation and filtration - self-regulating all the main filtration and ventilation system components - compensating for declining pressure drops and restoring power balance. Combining the use of AC motor-blower and certified low pressure-drop filters, the new ECS controlling system optimize power consumption, reducing CO2 emissions into the environment. Anti Bacterial Coating: Exclusive Dupont ALESTA anti-bacterial “Ag+ cations-based solution”, capable to prevent microbial contamination of surfaces thereby inhibiting long term surface growth. High Level Lighting: The big size safety glass side-windows along with the total opening of the frontal aperture, provide the highest level of luminosity to the work area. Easy handling and maintenance: The cabinet has been conceived to be easily demountable and re-mountable in order to pass through standard 800 mm wide door openings. Electrical socket fitted as standard in each size model. OPERATIONAL PRINCIPLES The environment air is is aspirated from the front of the cabinet and then filtered by means of G4 pre-filter and H14 HEPA/ULPA filter prior to being exhausted into the environment.