Air filter G91 series

panelindustrialfor clean rooms

The G91 filter is designed and tested to extract the smallest particles out of the air. The G91 series ­contains a fibreglass media pack in different heights (25 mm up to 93 mm) and is available in different types and heights of frames: 1”/2”/4” . The filter media is pleated in’Minipleat shape’ with a new application technology of ‘Hot Melt Spacers’ to achieve the lowest pressure drop results. These many variations always give each application the best and most optimal solution. Design The cardboardG-91 family of filters are made from die cut frame rigid cardboard, which makes them ­resistant to ­humidity and provides them with extra ­durability when ­assembled. The grid board ­supports on each side of the filter are built into the frame. These supports are also attached to each pleat in the frame to ensure stability and consistent spacing of the pleats. The filtration media is glued to the entire frame to prevent any air bypass. Testing Each HEPA filter is tested and packed in ­accordance with American standard IEST-RP-CC-001.3 (HEPA and ULPA Filters) or in accordance with the European standard BS EN 1882-1, 4&5 (testing filter elements HEPA and ULPA efficiency and scan method) or other customer requested Testing. The prefilters are tested in accordance with European standard BS EN 779 (Particulate air filters for general ventilation). This standard is based on Ashrae 52.76 (Gravimetric and ­Dust-Spot Procedures for Testing Air Cleaning Devices Used in General Ventilation for Removing Particulate Matter 1992).