With all the respect to all our colleagues & partners which own or operate diving liveaboard, it has to be clear that no one is offering the Nitrox for free, they are just adding the price of the Nitrox to the cruise price since the Nitrox membrane system is very expensive & very costly to be properly maintain. We can easily add the Nitrox cost to the cruise price & advertise that Nitrox is free but we believe that this is unfair since many of our valuable guests are still diving on normal air and we definitely see it’s not fair to charge guests who are not using this service.