OTS Spectrum FFM Ambient Breathing Valve (ABV).
The most anticipated accessory for the Spectrum Full Face Mask is finally here! The Ambient Breathing Valve (ABV®) allows a diver to breathe ambient air while at the surface, thus conserving tank air!
The most anticipated accessory for the Spectrum Full Face Mask is finally here! The Ambient Breathing Valve (ABV®) allows a diver to breathe ambient air while at the surface, thus conserving tank air!