The Filtered Air Breathable Fab-Swab PurFlock Ultra features a breathable sterile tubular casing which contains the entire flocked swab.  Half of the tubular casing is removed prior to collection.  The swab is reinserted into the tubular casing after collection.  The sterile casing includes small holes which are covered with a breathable protective film.  This allows for the swab to completely dry while preventing any outside contact.  The tubular casing may be sealed with evidence tape and labeled.  Provided in packages of 50 or 500 swabs.