DeVilbiss Model DV5x Series CPAP units DV5x Series CPAP number on LCD display to appear as “RUN-TEST”.

DeVilbiss Model DV5x Series CPAP units. For use in treating Obstructive Sleep Apnea (OSA) by means of application of positive air pressure. Used in home and clinical environments.  A limited number of DV5x Series CPAP units were manufactured and shipped without the serial number programmed into the unit, causing the unit serial number on LCD display to appear as “RUN-TEST”.