The design of the new bag is a major advance on existing designs with increased filtration surface area, F8 classification to BS En779:2002 standard and a 75% reduction in stitched seam length. This dramatically reduces the cost of manufacture and also the potential for leakage through the seams.
New safety features, including an inlet non-return device to prevent dust from escaping during removal, allows an improved filtration standard plus other safety features, enabling enable the application of the CE mark for the first time to be used on filters of this type.
Features of the new bag include an new extended card inlet device and foam rubber seal, which enable single handed installation and removal as well as eliminating any hand contact with the contaminated filter surfaces, whilst the folded structure makes the filter self supporting.
The life of each filter can be extensive, because the bag can be easily and safely removed, inverted and shaken to dislodge collected dust into a āVā shaped end pocket. Another feature is that compartment fastening tags prevent uneven inflation and reduce the bellows effect which can cause dust ejection when filters are removed and compressed for disposal.
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