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Cressi Sub

Duke Dry Fullface Snorkeling Mask

Stock No.  XDT005058
PhP 3,636.00
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Duke is a full-face mask (FFM) and it is designed to give the user the opportunity to breathe easily.

Obviously, it’s not the first of its type. In facts we could say that Cressi’s Medusa mask was the first FFM but it didn’t separate the breathing chamber from the vision chamber.

Cressi owned a patent for the Medusa mask.

Our new system of breathing, that we have designed are patenting, because it doesn’t use the old system of breathing through a central tube system, so it doesn’t require the need for forced breath to travel a longer distance and open more than one valve.

What else makes our mask different from all the others? And how does the Duke allow the snorkeler to breathe freely, also expel CO2 build-up and not fog up the vision chamber?

These three features put Duke in a class of its own:

The advantage of lateral tube position.

An excellent Anti-fogging effect.

A minimal build-up of residual CO2.


The reason why we have chosen to position the tube laterally is because it is the shortest route possible for air flow with minimal effort. And this is currently under patent.

Its left-side tube is divided into two before entering the two separate chambers.

One is connected to the breathing chamber and the other is connected to the vision chamber.

This advantage is enhanced by the fact that neither the breathing chamber nor the tube has any valves to impede the user’s breath.

What’s more, the extraction chamber has an enlarged volume in order to allow for optimal CO2 extraction.

Something interesting to note is, this air flow system in Duke produces far less co2 build-up than a safety gas mask.

 

Comes in size:
S/M - black/red and black/pink
M/L - black.blue ans all black


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