A Sanitary Portable Single-Use Floss Device (SPSFD), designed to enable a user to carry a single-use portion of dental floss in a manner that protects the dental floss from contamination during storage or transportation, such as in a pocket or a purse, is disclosed; the device comprising a spool, a length of dental floss wound about the shaft of the spool, the dental floss being protected from contamination by the spool, and a grab ball or ring functioning as a means to hold the length of dental floss in the stowed condition, and as a means of holding the deployed length of dental floss for use. A method of using said SPSFD is also disclosed.