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diveshack Malta / Courses / Enriched Air Nitrox
Advanced Zone · Specialty

Dive Longer.
Dive Smarter.

SSI Enriched Air Nitrox lets you breathe a gas mixture with up to 40% oxygen: significantly extending your no-decompression limits and giving you more time exploring Malta's incredible dive sites.

Book Your Course Download Syllabus
Certified by SSI
Course Price
€240
€185 course fee + €55 SSI eLearning
✓SSI eLearning licence: €55
✓Course fee inc. full equipment: €185
✓2 open water dives
✓SSI certification card
✓diveshack instructor
Book via WhatsApp

or email info@divemalta.com

10
Min Age
OWD
Min Cert
22m
Max Depth
1 Day
Duration
1
Confined Water
2
Open Water Dives
What is Nitrox?

More bottom time. Less surface interval.

Nitrox: also called Enriched Air (EANx): is any gas mixture containing more oxygen than standard air's 21%. The most common recreational mixes are EANx32 and EANx36, though your certification covers any mix up to 40% oxygen.

By increasing the oxygen content, you reduce the proportion of nitrogen in every breath. Less nitrogen means slower nitrogen absorption: which translates directly into longer no-decompression limits on every dive. Dive to 22m on EANx36 and your NDL is roughly doubled compared to air.

  • Dive longer on every dive with extended no-decompression limits
  • Reduce surface interval time between dives
  • Safer nitrogen management across multi-dive days
  • Use Nitrox on any future certified dive trip worldwide
  • Understand gas analysis and oxygen toxicity management
SSI

SSI Enriched Air Nitrox Diver

diveshack Malta: SSI Diamond ITC

Level Specialty
Max Depth 22m / 40% O₂ max
Gas Mixes Up to EANx40 (40% O₂)
Open Water 2 dives
Duration 1 day
Certified by SSI (Scuba Schools International)
Marine Life

What You Might See

A sample of the species you might actually see at this course's depth. Click any card to read the full species guide.

Course Structure

One day. Three phases.

The SSI Enriched Air Nitrox course is designed to be completed in a single day. Study the theory at your own pace before you arrive, then complete the confined water session and two open water dives with your diveshack instructor.

Phase 01

Knowledge Development

Complete the SSI digital materials on your phone, tablet or laptop before the course day. Covers the science and safety of diving on enriched air.

  • SSI digital materials (app or tablet)
  • Oxygen toxicity theory and CNS limits
  • Gas analysis procedures
  • Planning dives with EANx tables
  • CNS oxygen clock tracking
  • Partial pressure calculations
At your own pace
Phase 02

Confined Water Session

A focused half-day pool session with your instructor to put the theory into practice before heading to open water.

  • Practice gas analysis with a real analyser
  • Review dive tables for Nitrox mixes
  • Plan both open water dives on EANx
  • Equipment labelling and fill verification
  • Instructor Q&A and dive briefing
Half day
Phase 03

Open Water Dives

Two open water dives breathing EANx at diveshack's local dive sites. Full pre-dive gas analysis demonstrated by the student before each dive.

  • 2 open water dives on EANx
  • Pre-dive gas analysis demonstration
  • Nitrox dive planning in practice
  • Extended NDL monitoring at depth
  • Full debrief and logbook sign-off
2 dives · local sites
What's Included

Everything in the €240 price

▭

SSI Digital Materials

Full SSI Enriched Air Nitrox digital learning materials. Study at your own pace via the SSI app or browser before course day.

▭

All Dive Equipment

BCD, regulator, wetsuit, mask, fins, computer and Nitrox-analysed cylinders. Everything you need for both open water dives.

▭

2 Open Water Dives

Two guided dives at diveshack's local Malta dive sites. Dived on enriched air with your instructor alongside.

▭

SSI Certification Card

Digital SSI Enriched Air Nitrox Diver card issued on the day of completion. Worldwide recognition, valid with any EANx up to 40% O₂.

Requirements

What you need before you start

The Nitrox course is open to any certified diver. No additional confined water skills are required before enrolling.

  • ✓ OKOpen Water Diver certified: any agency accepted
  • ✓ OKAge 10 or over
  • NOTEMedical clearance: standard dive medical form required
Agency equivalents accepted: PADI, CMAS, BSAC, NAUI and all WRSTC-member agencies. Bring your certification card and logbook.
Perfect For

Is this course right for you?

Perfect if you...

  • Are already certified and want more from every dive
  • Are planning a liveaboard or dive holiday
  • Regularly dive Malta's deeper sites at 20m+
  • Want to reduce surface intervals between dives

Not required for: Try Scuba participants. Nitrox is a post-certification upgrade for qualified divers.

Pricing

Course options

Most Popular
Enriched Air Nitrox
€240

€185 course fee + €55 SSI eLearning. Full equipment rental and both open water dives included.

  • ✓SSI eLearning licence (€55)
  • ✓Course fee (€185)
  • ✓Pool session with instructor
  • ✓Full equipment rental
  • ✓2 open water dives
  • ✓SSI certification card
Book This
Private Instruction
€425

€370 course fee + €55 SSI eLearning. One-on-one instructor, flexible schedule, all equipment and dives included.

  • ✓SSI eLearning licence (€55)
  • ✓Full course fee (€370)
  • ✓Dedicated one-on-one instructor
  • ✓Flexible scheduling
  • ✓Priority site selection
  • ✓Personalised debrief
Enquire

All prices include VAT · See our booking and cancellation policy in the FAQ

Why diveshack

Malta's SSI Diamond Instructor Training Centre

SSI
DIAMOND
ITC

diveshack Malta: SSI Diamond ITC

The highest SSI facility rating. TC #735644. Awarded to centres that consistently meet the highest standards of instruction, safety and student satisfaction.

MTA
LICENSED

Malta Tourism Authority Licensed

Fully licensed dive operator under the MTA. All instructors hold current SSI ratings and valid first aid certifications.

IDN
GROUP

IDN Group Member

Part of the IDN global dive network. Emergency oxygen and first aid equipment on site and on every boat.

FAQ

Common questions about the Nitrox course

What is Enriched Air Nitrox?▾
Enriched Air Nitrox is any breathing gas mixture containing more than 21% oxygen: the amount found in normal air. Common mixes include EANx32 (32% oxygen) and EANx36 (36% oxygen), with certification covering any mix up to 40%. By increasing the oxygen percentage, you reduce the nitrogen percentage. Less nitrogen absorbed per breath means slower saturation of your tissues, which extends your no-decompression limits compared to diving on air.
Do I need to be Open Water certified?▾
Yes. You must hold a minimum Open Water Diver certification from any recognised agency: SSI, PADI, CMAS, BSAC, NAUI and all WRSTC equivalents are accepted. If you are not yet certified, take a look at our SSI Open Water Diver course first.
How long does the course take?▾
One full day. The digital theory is completed at your own pace before you arrive: most students finish it in 2 to 3 hours on the evening before. On the course day you will have a confined water session in the morning to review the theory and plan your dives, then complete two open water dives in the afternoon. Most students are certified and back at the dock before 17:00.
Can I use Nitrox on any dive after certification?▾
Yes. Your SSI Enriched Air Nitrox Diver card is recognised worldwide by SSI, PADI, CMAS and all major agencies. It qualifies you to dive with any EANx mix up to 40% oxygen at any certified dive centre globally. You will need to analyse your own gas (using the dive centre's analyser) and label your cylinder before each dive: exactly as taught in the course.
Is Nitrox safe?▾
Very safe when used correctly, and the course teaches you exactly how to do that. The main risk with Nitrox is oxygen toxicity: a central nervous system convulsion that can occur if you exceed the oxygen partial pressure limit of 1.4 bar PO₂ (or 1.6 bar absolute maximum). The course teaches you how to calculate your maximum operating depth for any mix, how to track your CNS oxygen clock across multiple dives, and how to stay comfortably within those limits. At Malta's recreational depths, there is a wide safety margin when diving EANx32 or EANx36.
What is the maximum depth with Nitrox?▾
When diving EANx36: a commonly used recreational mix: the maximum operating depth is 22m. This keeps your partial pressure of oxygen within the safe 1.4 bar PO₂ limit recommended for recreational diving. On EANx32 the maximum operating depth increases to 30m, but the NDL benefit is proportionally smaller. For the Nitrox course, all dives are planned to a maximum of 22m.
Continue Your Training

What to dive next

18m · Safe Zone

SSI Open Water Diver

Not yet certified? Start here. Get your Open Water Diver certification in Malta's clear, calm Mediterranean water.

View Course →
30m · Advanced Zone

SSI Advanced Open Water

Extend your depth limit to 30m and unlock Malta's best wreck sites. Pair with Nitrox for the maximum bottom time at depth.

View Course →
40m · Deep Rec Limit

SSI Deep Diver

Push your recreational limit to 40m. Essential for full access to the deeper sections of Um El Faroud and MV Karwela.

View Course →

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