The SCOTT AiR-PAk NxG7 self contained breathing apparatus (SCbA) is a respirator . MEDIUM FLOW, DEEP PROBE, CORN OIL, FIT FACTOR PERFORMANCE TEST if the facepiece is to be used with a hood or other head gear that.Air-Pak NxG7 SCBA – User Manual (English). Last Updated February 16, 2018. 33.37 MB File Size. Download. Products. Products. Respiratory Protection.