Become an SSI Nitrox diver During the Enriched Air Nitrox 40 Program, you will gain comprehensive knowledge of how oxygen-enriched gas mixtures affect your body and your dive profile. The curriculum focuses on the practical application of nitrox, including the mastery of oxygen analyzers and the calculation of your Maximum Operating Depth for various gas blends. You will also learn to integrate nitrox settings into your dive computer to optimize your decompression limits. This internationally recognized specialty provides you with the skills to safely use nitrox mixes containing up to 40 percent oxygen at dive centers and liveaboards around the world. By mastering these concepts, you ensure a higher level of safety and competence for every future underwater adventure. Upon completion, you will earn an SSI Enriched Air Nitrox 32% or 40% certification. 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Powered by Sort by: Date ascending Date ascending Date descending Price ascending Price descending Distance ascending Distance decending View on Map Automatic 50 km 100 km 500 km Worldwide Facts and Training Standards Minimum Age 10Amount of Academic Sessions 4Maximum Training Depth 30 m / 100 ftSuggested duration (h) 3-6Certification Prerequisites Open Water Diver certification, In combination with Open Water DiverSSI Standards Languages Português (Brazil) 简体字 Hrvatski Česky Nederlands English English US (imperial) Suomi Français Deutsch ελληνικά עברית Magyar Bahasa Indonesia Italiano 日本語 한국어 Polski Português (Portugal) Русский Español ภาษาไทย Türkçe українська мова Tiếng Việt Take your dive to the next level Here are the benefits you can expect from attending this training program: Increase your dive times or safety margins Decreased surface intervals compared to diving with air Learn new skills and increase your diving knowledge Continue your Training and earn free Recognition Upgrade your training experience by taking more Specialty Programs. These are a perfect match for your current training! When you complete a certain number of Specialty Programs paired with Logged Dives, you will also automatically earn the SSI Recognition Ratings – SSI Specialty Diver, SSI Advanced Specialty Diver and SSI Master Diver. Continue your SSI Specialty training right away and earn recognition as you become a safer and more comfortable diver! Computer DivingLearn the ins and outs of using a dive computer correctly to increase your efficiency and safety while diving. Get the most out of your dive computer investment with the SSI Computer Diving specialty.10Minimum Age3-6Suggested duration (h)Deep DivingMany exciting and iconic dive sites lie in deeper waters. The SSI Deep Diving Specialty will get you there - safely and with confidence. Learn how to plan and conduct dives to between 18 and 40 meters deep with SSI.15Minimum Age10-15Suggested duration (h)3Open Water SessionsDecompression DivingDo you want to learn how to safely perform a decompression dive while still using your recreational total diving system? Are you interested in using your dive computer’s advanced features? Learn how to go beyond no-decompression limits with the SSI Decompression Diving Specialty certification.15-20Suggested duration (h)3Open Water SessionsPerfect BuoyancyThe SSI Perfect Buoyancy Specialty is the best way to improve your body position for relaxed dives, lower your air consumption and increase your bottom times. Take control of your enjoyment. Start online now!10Minimum Age5-10Suggested duration (h) More Information Training Prerequisites SSI Entry-Level Programs – Open Water Diver, Freediver, or Mermaid require students to complete a water fitness evaluation prior to open water training. The goal of this evaluation is to determine a comfort level baseline consisting of: Swim Assessment Survival Float Technical Requirements To start training, students must create a MySSI profile. This can either be done via the SSI website at www.divessi.com/register or by installing the MySSI App. Simply download the app for either iOS or Android, set up the user profile, and access the world of diving in minutes! The MySSI App safely stores everything in one place, online or offline – training materials, logbook, and certification cards. This includes Recreational Scuba, Extended Range, Freediving and Mermaid. Training Center Selection & Affiliation Every student must select an SSI Training Center as their “Training Partner” during the course registration process. Affiliation ensures personalized service and a high-quality training experience. Students can also change affiliation or choose to affiliate with multiple Training Centers in their user profile. When affiliating with a Training Center online or via the MySSI App, a Privacy Policy Agreement will be processed to comply with GDPR regulations. Medical & Administrative Requirements Each student or candidate must complete the required SSI Training Record Forms prior to participating in any SSI training program. The forms for minors must be reviewed and signed by a parent or guardian. Responsible Diver Code SSI Responsible Diver Code - Scuba DivingSSI Responsible Diver Code - FreedivingSSI Responsible Diver Code - Extended Range Diving Diver Medical Statement & Questionnaire or Physician’s Approval to Dive (where required) Training Assumption of Risk, Liability Release, & Liability Release, & Hold Harmless Agreement (where required / not applicable within the European Union) Program-specific Completion Record (done by the Instructor prior to certification) Training Course Costs Training consists of various components which are either charged singly or as a package depending on the selected Training Center. The components are: Training Materials / Digital Kit Tuition for Academics and In-Water Training Open Water Training Dives Certification Discover the Wonders of the Deep with SSI's Blog Join us on an exciting journey of discovery and learn more about exhilarating diving adventures, dedicated conservation initiatives, and innovative educational opportunities that will help you illuminate the extraordinary beauty of the underwater world. Let's explore the underwater world together and delve into the hidden wonders beneath the gentle waves. Mermaid Skills: Master Buoyancy for Effortless Movement 2026-09-24 Improve your mermaid skills with practical buoyancy tips for better body position, breathing, control, and graceful movement underwater. Scuba Diving Breathing: How to Stay Calm and Conserve Air 2026-09-22 Improve scuba diving breathing with calm, steady techniques that help you relax, support buoyancy, avoid common mistakes, and conserve air. Scuba Diving Career: Christopher Hokkanen's Unexpected Path 2026-09-18 Follow SSI Master Instructor Christopher Hokkanen's scuba diving career from recreational diving to search and recovery, film safety, and underwater acting. Featured destinations that are ideal for advanced scuba diving Try a range of dive styles, improve your skills and get the experience you need to explore the world’s best dive sites. Whatever your dive passion, we have an SSI advanced training program for you. Get your SSI Specialty certifications to become a safe and comfortable diver. © iStock/ferrantraiteMexicoDiving in Mexico is a breathtaking, world-class experience. This country offers many adventures and a landscape full of natural wonders.Learn more © iStock-LunamarinaFloridaThe Sunshine State Florida offers many great and divers dive sites from the tropical Florida Keys to deep shipwrecks and crystal clear freshwater springs.Learn more © iStock/ultraformaCroatiaA historically rich country in Southeast Europe, bordering the Adriatic Sea, Croatia is called “the country of a thousand islands”.Learn more © AdobeStock/ChristopherHondurasCompared to other Caribbean diving hot-spots, Honduras is just as good and even better than some sites, but with the advantage that it is cheaper.Learn more © iStock/tawatchaiprakobkitIndonesiaIndonesia is considered one of the best diving destinations in the world with more than 17,500 islands distributed over 5,000 kilometers.Learn more © iStock/RudyBalaskoItalyItaly is a peninsula in southern Europe, famously shaped like a boot that is surrounded by three parts of Mediterranean - offering various dive sites.Learn more