What is a fish type mask? The fish type N95 mask is one of the typical mask styles. It is also called 3-Panel flat-fold respirator or a three-panel designed respirator. Comfortable to wear an N95 fish type mask, with enough space to breathe for its tri-fold cup design. Masking is easy, with the most reliable fish type mask N95. No more foggy, smoggy, and stuffy air. Most comfortable with great protection. Keep your family safe from harmful airborne particles with a fish face mask N95.