Hollis M-1 Frameless Mask Instruments Safety Red Color Coded Indicators

Safety Red Color Coded Indicators from 0' to 30' and 130' to 200'

The Biolite looks to establish itself as a complete solution with a color design and streamlined

truer colors are what you get with Atomic Ultra-Clear Lens

and Japanese

meeting or exceeding the performance of regulators that cost much more

Hollis M-1 Frameless Mask Instruments Safety Red Color Coded IndicatorsThis products Overview Visibility is the most important aspect of any dive. The M1 Mask raises the bar for optical quality and distortion free vision. The extra crystal clear Saint Gobain Diamant tempered glass single lens is valued for its attractive appearance and optical qualities. The low iron content produces a higher light transmittance and a reduced green tint inherent in other glass. This makes the lens distortion free and helps improve color