A favorite of test divers offering comfort with an easy, effective seal and no-fuss equalization, the Spectrum is our Testers Choice for full-face masks. | Scuba Diving Magazine
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Introducing the OTS Spectrum Full Face Mask Save your precious tank air by adding an Ambient Breathing Valve (ABV) to the Spectrum FFM, making conserving air at the surface as easy as a simple twist. | Ocean Technology Systems
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"It is like a sacred ritual when you go into the ocean". Check out this amazing short by Behind the Mask ! A mystical experience with Thresher Sharks on Malapascua, told in this short film with Lanch E Alimaida and Hayward Coleman. | Ocean Technology Systems
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