Doc's Proplugs help divers equalize safely, faster & easier.
Vented DOC'S PROPLUGS help divers equalize safely, faster & easier. EASIER because Pressure Changes are less abrupt. FASTER because pocket of warm air prevents cold water from touching sensitive Eardrum. Diver can concentrate better doing the Valsalva Maneuver without PAIN. BODY HEAT warms water preventing THERMAL REFLEX. Cold water deep in External Ear Canal triggers a shock to SEMICIRCULAR CANALS. Symptoms: vertigo, disorientation, nausea and VOMITING. "STICK IT IN YOUR EAR" Be a Happy Diver!