PSA Oxygen Generator for Marine Use

Keep Your
Catch Alive
& Profitable

High-purity oxygen generation purpose-built for 1–5 ton small fishing vessels. Ensure live fish survival, peak quality, and maximum economic value — every voyage.

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90%
Oxygen Purity
24H
Continuous Operation
75%
Cost Savings vs Cylinders
The Challenge

Why Small Fishing Vessels
Face an Oxygen Crisis

The harsh onboard environment of small fishing vessels makes oxygen management uniquely difficult — conventional aeration simply isn't enough.

Operating Environment

🐟
Limited Tank Volume
Small live fish tanks with extremely high post-catch stocking density creates rapid oxygen depletion.
⏱️
Long Operating Hours
Extended fishing trips and transport time increases oxygen demand dramatically over the voyage.
🌊
Harsh Conditions
Strong vibration and wave motion challenge conventional equipment reliability and performance.
⚡
Limited DC Power
Small vessels operate on DC power only — most industrial oxygen systems are incompatible.

Air Aeration vs. Oxygen Generator

Air Aeration
O2MOS Generator
Only 21% oxygen concentration
90%+ pure oxygen output
Dissolved O₂ drops in heat
Stable across all temperatures
Fails under high stocking density
Optimized for dense live tanks
Slow response to oxygen demand
Instant ON — no preparation
High fish mortality risk
Dramatically improved survival rate
Small fishing vessels with oxygen cylinders
Conventional oxygen cylinders on small fishing vessels — risky and costly
Small fishing boat deck
Typical 1–3 ton fishing vessel operating environment
Live fish tank with air stone
Live fish tank with O2MOS air stone diffuser installed
PSA Technology

Pressure Swing Adsorption
— How O2MOS Works

Our PSA oxygen generators extract high-purity oxygen directly from ambient air using industrial-grade zeolite molecular sieves — no cylinders, no logistics, no downtime.

01
Air Intake
Ambient air is compressed by an onboard compressor and fed into the dual-tower adsorption system at controlled pressure.
02
Nitrogen Adsorption
High-performance zeolite molecular sieves with vast pore structures selectively capture and remove nitrogen from the air stream.
03
Oxygen Extraction
Remaining gas — now 90–93% pure oxygen — is continuously supplied to the live fish tank via flow meter and air stone diffusers.
90±3%
Oxygen Purity
24H
Sustained Stability
100%
Continuous Operation
0 sec
Startup Preparation
75%
Lower Cost vs Cylinders
O2MOS internal PSA unit
Internal view of O2MOS PSA zeolite adsorption module
Air stone diffuser
High-efficiency air stone diffuser for optimal oxygen dissolution
Product Lineup

Choose Your Model

Available in two flow rates with AC or DC power options — including a Smart Model with internet connectivity for remote monitoring.

O2MOS-3LPM
3 LPM Model
O2MOS-3LPM
3 Liters per Minute
Oxygen Purity90% @ 3 LPM
Best For1–2 ton vessels
Operation24H continuous
AC PowerDC 12VDC 24V
O2MOS AC Smart Model
Smart Model
O2MOS-7LPM
7 Liters per Minute
Oxygen Purity90% @ 7 LPM
Best For3–5 ton vessels
Smart OptionInternet monitoring
AC PowerDC 12VDC 24VSmart IoT
O2MOS Large Model
DC Model
O2MOS DC
DC 12V / 24V Native
Power InputDC 12V or DC 24V
DesignVessel-optimized
ControllerDC O2CON included
DC 12VDC 24V
DC O2CON Controller
DC O2CON — Smart controller with display and operating buttons
Power Supply Unit
Dedicated DC power supply unit for marine environments
Real-World Installation

Installed & Operating
on Korean Fishing Vessels

O2MOS systems are actively deployed on small commercial fishing vessels at Korean ports — professionally installed and field-proven.

Installation on fishing vessel
Professional O2MOS installation in progress at Korean fishing port
Installed vessel with O2MOS system Technician installing air stone
System Configuration

Complete 5-Component
Onboard System

Simple to install, easy to operate, built for the demands of commercial fishing.

1
PSA Oxygen Generator
Core unit — O2MOS-3LPM or 7LPM model
2
Power Supplier
DC 12V / DC 24V or AC power input module
3
Monitoring (Optional)
Real-time dissolved oxygen and system status display
4
Flow Meter
Precise oxygen flow control to the live fish tank
5
Air Stone Diffuser
Efficient oxygen dissolution directly into tank water
O2MOS installed system on vessel
Operational Benefits

The O2MOS Difference

Across every critical dimension of small-vessel fishing operations, O2MOS delivers measurable improvement.

CategoryWithout Oxygen GeneratorWith O2MOS Generator
Live Fish SurvivalLow dissolved oxygen causes stress and mortalityStable oxygen supply improves survival rate significantly
Catch QualityFish quality degrades rapidly after captureMaintains peak freshness and full market value
Extended OperationLimited transport time due to oxygen shortageLonger fishing and transport range enabled
Safety & HandlingHeavy high-pressure cylinders — explosion riskNo cylinders; operates at ≤1.5 bar — safe onboard
Operating CostRecurring oxygen refill and cylinder rental costsUp to 75% lower long-term operating cost
Safety Comparison

Safe by Design

High-pressure oxygen cylinders are a genuine hazard on small fishing vessels. O2MOS eliminates that risk entirely.

✅ O2MOS Oxygen Generator
  • Operates at low pressure (≤1.5 bar) — no explosion risk
  • Generates oxygen on-demand from ambient air
  • No heavy cylinders to handle or store onboard
  • No refill logistics — runs continuously from power supply
  • Designed for marine vibration and motion environments
⚠️ High-Pressure Oxygen Cylinders
  • High-pressure storage presents explosion and fire risk
  • Heavy and difficult to handle on rolling vessel decks
  • Require periodic replacement — supply chain dependency
  • Risk of running out mid-voyage with no backup
  • Ongoing regulatory compliance and inspection required

For 1–5 Ton Fishing Vessels

Oxygen Generators Are
Not Optional. They're Essential.

Protect your catch, protect your revenue, and protect your crew — with O2MOS PSA oxygen generation technology.

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Get In Touch

Contact O2MOS

Ready to upgrade your vessel? Reach out to our team for product inquiries, technical support, and installation guidance.

📞
Phone
+82-31-904-8202
+82-70-8264-6256
🌐
Website
www.o2mos.com
www.o2mos.co.kr
✉️
Email
dkahn0401@gmail.com