First degree:
Its travel-ready weight makes the Helix Compact the perfect choice for travelers.
Automatic closing: prevents corrosive water from escaping from the first stage by automatically closing. This prevents the interior from being washed away.

Second degree:
Pneumatically balanced for smooth and easy breathing.
Optimize your opening effort: with the Minimum/Maximum adjustment button you can increase the opening effort, which is ideal for avoiding freeflow at the surface, or reduce the inhalation effort, reducing the work of breathing.
The wider opening allows water to pass laterally through the diaphragm, preventing free flow in strong currents and reducing cracking effort.
Prevent free flow: the built-in Venturi button allows you to make precise adjustments, even when wearing gloves.
Comfo-Bite is a soft yet strong bite and reduces jaw fatigue with its unique bridge on the palate.