A multi-engine malicious code scanning method for scanning data sets from a storage device is provided. An ethylene-\u03b1-olefin copolymer having a monomer unit based on ethylene and a monomer unit based on an \u03b1-olefin having 3 to 20 carbon atoms, which has a melt flow rate of 0. The housing is removably attached to an opening near a trigger valve pin.