abstract:The purge button is the part of a diving regulator that may be depressed manually to force the regulator to deliver air. This is either a separate part mounted in the front cover or the cover may be made flexible and serves as the purge button.
OtherhandyfeaturesincludeanergonomicVenturi levertoreducegritingress, anewpurgebutton that isselfclearingand a new siliconeexhaust valve to improvebreathingperformance.