Medium Speed Vents provide a moderate intensity training of the respiratory muscles.
These were provided as standard on all POWERBEATHER Wave Edition models up to 9th February 2017. If you purchased after that date the Medium SPEED VENT provides more breathing resistance.
This is a long length – suitable for open and choppy water.
For the standard length please see the SPEED VENT Medium Standard
SPEED VENT RESISTANCE
SPEED VENT easy for relaxed, natural breathing while swimming or active snorkeling-diving.
SPEED VENT medium for a moderate intensity training of the respiratory muscles.
SPEED VENT power for high-intensity [strength/ tension] muscle training.