How is a person who prepares Nitrox for diving commonly referred to?

A person who prepares Nitrox for diving is commonly referred to as a blender. This term specifically denotes an individual skilled in combining nitrox's components—primarily oxygen and nitrogen—to create the right mixtures for recreational diving. The process involves precise measurements and attention to safety protocols, as managing gas mixtures requires knowledge of the desired oxygen content and the related depth limitations for safe diving.

The term "blender" is widely recognized in the scuba diving community, as it differentiates those engaged in the gas preparation process from other roles within scuba diving. While operators, fillers, and technicians may also be involved in various aspects of diving operations and equipment maintenance, blender is the specific designation for those focused on producing nitrox mixes for dives.