Ocean Reef IDM

The Ocean Reef IDM mask is an Integrated Diving Mask, a full face rig that combines a diving mask, a second stage regulator and, in many cases, a snorkel.

Main features of Ocean Reef IDM:

More natural breathing: Unlike traditional masks, the IDM allows the diver to breathe through both the nose and mouth, which reduces jaw fatigue by not having to hold a mouthpiece.

Anti-fog system: The patented air circulation design prevents the mask from fogging up. Inhaled air is kept separate from exhaled air by an oronasal pocket, ensuring visibility.

Underwater Communication: Ocean Reef offers wireless or wired communication systems that can be integrated into the mask, allowing divers to talk to each other and the surface.

Wide View: The polycarbonate visor offers an expanded field of view, with high transparency and a scratch-resistant coating.

Additional Features: You can add accessories such as lights, cameras, and optical lens mounts.

Surface Air Valve (SAV): Allows the diver to breathe ambient air while on the surface, without having to remove the mask.

Removal and replacement process The process for removing and replacing an full-face scuba mask (Ocean Reef/OTS) underwater is a critical emergency skill, typically practiced in confined water before open-water dives. Removal is quick via chin buckles, followed by switching to a backup regulator and spare mask, while replacement involves donning, purging water, and strap tightening—though in real emergencies, ascent is prioritized over redonning.[1][1]

Removal Steps

Place both hands on the base of the mask and use thumbs to pull forward on the tabs of the lower jaw (chin) buckles, pushing out and away to release the mask from the face.[1][1] Immediately locate and breathe from the alternate air source (octopus regulator), then retrieve and don a backup mask from your BCD, clearing it as needed.[1][2] Terminate the dive and ascend safely, as you lack a full backup regulator setup.[1][3]

Replacement Steps

Fully extend all straps on the prepared mask, remove the backup mask, position the mask over your face with chin seated in the pocket, and push it on while holding the alternate air source nearby.[1][1] Tilt head firmly upward and press the purge button on the second-stage regulator to flush out water, inhaling cautiously to confirm clearance.[1][4] Tighten straps evenly starting with the bottom two (jaw), then middle (temple), and top as needed; exhale forcefully downward if residual water remains.[1][3]

Key Precautions

Practice in a pool to build proficiency, as the mask's semi-positive pressure resists flooding but requires precise purging if water enters.[1][4] Never hold your breath, ensure equalization works pre-dive via the nose block, and close the Ambient Breathing Valve (ABV) before entry.[1][3] The internal regulator lock prevents accidental detachment during normal use.[3]