First stage

• Compact The Calypso is compact, easy to pack and easy to store
• High-Flow Piston Technology Ensures great performance and excellent reliability. The large-diameter piston gives you more stable pressure out
• Intuitive Design Designed with large holes in end caps for easy cleaning and better thermal exchange and improved resistance to freezing
• Second Filter Includes a second filter, which can be change without dismantling and provides increased protection from polluted air
• Prevents Water Retention Open-yoke screw helps prevent water retention
• Protects Against Shocks The dust cap adjacent to the body protects the yoke inlet fittings against shocks

Second stage

• Comfo-Bite Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge
• Reusable Clip Perform quick and easy mouthpiece changes using the removable, reusable clip
• Venturi Knob Easy control: the in-line ergonomic Venturi knob lets you make precise adjustments, even while wearing gloves
• Polyurethane Purge Cover Rugged, durable polyurethane purge cover is abrasion-resistant, tear-resistant, minimizes inhalation effort, allows easy water purging, and helps protect against shock
• Prevents Freeflow Side openings prevent freeflow when facing into currents or riding a scooter
• Easy Maintenance Simple maintenance made possible by a reduced number of components and easy access to the exhaust valve through a clipped deflector. Deflector also splits up bubbles to decrease noise and protect the valve from expiration