A split gate flash memory cell comprising a semiconductor substrate having a first insulating layer thereon and a floating gate with a first width is disclosed. The chassis includes a mounting bracket. This process results in at least about 50% of the microbials being killed. The bit may be magnetized when the magnet is in the \u201con\u201d position and demagnetized when the magnet is in the \u201coff\u201d position. A filter medium of the present invention provides greater than about 4 log viral interception, and greater than about 6 log bacterial interception. According to yet another aspect, premature ventricular contractions may be classified using the identified groups.