Best Low Volume Scuba Masks for Freedivers and Technical Divers I'll be honest—I didn't understand why mask volume mattered until I tried freediving for the first time off the coast of Belize. Every meter I descended, I felt like I was fighting my mask, constantly equalizing to keep it from suctioning to my face. My regular recreational mask, which worked perfectly fine on scuba dives, suddenly felt like it was working against me. That's when I learned that the best low volume scuba masks make a massive difference when you're diving without a tank or doing technical dives where streamlining matters. Low volume masks sit closer to your face, which means there's less air space between the lens and your eyes. For freedivers, this translates to less air needed to equalize the mask as you descend—a huge deal when you're holding your breath. For tech ...