Please send to me product catalogue with all technical details, to make a selection for the required items as follow 1- High capacity HEPA Filter Media 610X610X292 mm. tested in accordance with EN1822:2009 Sofilair class H14 with DOP Efficiency >99% MPPS Efficiency > 99.995% Final Pressure Drop 600 Pa Max Air flow rate 3400CMH/250 Pa (Qty.6) 2- HEPA Filter Box. Suitable for 1 filter Media 610X610X292 mm. Factory-assembled air-tight housing with upstream and downstream outwardly-turned flanges for installation in the ductwork. * Housings suitable for high internal static pressure. * Housing construction shall be galvanized steel. Metal-to-metal joints shall be welded. * Each HEPA filter secured in place with four spring-loaded swing-arm assemblies to provide positive sealing of the HEPA filter to the mounting surface.*Access doors hinged/removable and have continuous neoprene gasketing on the perimeter. (Qty.6) Regards Show More