With The Atomic SV1 Snorkel Atomic have shown everyone else how it should be done! With the SV1 you won't be coughing and spluttering ever again.
How does it work ?
When the diver clears the SV1, a small watertight tube located inside the snorkel body is designed to keep the breathing airway path free of collected water droplets. On the SV1 the one way valve or Scupper Valve simply allows water to drain into a lower reservoir each time the diver exhales. The result is a crisp clearing, hydrodynamic snorkel without being big, bulky and uncomfortable to use.