O2MOS
PSA OXYGEN GENERATOR

Why Oxygen Generators Are Essential
for Small Fishing Vessels

Ensuring Live Fish Survival, Quality, and Economic Value
EXPORT EDITIONAsia & Global Aquaculture Markets

Operating Environment

of Small Fishing Vessels

▤
Limited live fish tank volume
🐟
High stocking density after catch
◔
Long operating hours at sea
≈
Strong vibration and wave motion
⚡
Limited onboard power supply (DC)
→ Oxygen deficiency occurs rapidly

Limitations of Conventional Aeration Systems

Blowers and air pumps alone cannot keep pace with real onboard demand

≋

Only 21% Oxygen in Air

Ambient air aeration delivers a fraction of the oxygen concentration fish actually need.

🌡

Drops in High Temperature

Dissolved oxygen decreases sharply as water temperature rises during summer operation.

↘

Ineffective at High Density

Aeration cannot keep up once stocking density increases after a large catch.

◔

Slow Response to Demand

Air-based systems react too slowly to sudden drops in dissolved oxygen.

Air Supply ≠ Oxygen Supply

Problems Caused by Oxygen Shortage

A single deficient trip can undo an entire catch's value

⚠

Increased Stress

on live fish

→
↘

Reduced Vitality

and activity

→
◉

Color Degradation

visible quality loss

→
✕

High Mortality

during transport

→
$

Economic Loss

at landing

Why Oxygen Generators Are Necessary

The solution engineered specifically for onboard live fish handling

90%+
High-Purity Oxygen
Rapid
Increase of Dissolved O₂
Stable
Supply Regardless of Temp.
Effective
for High-Density Tanks

What Is the O2MOS PSA Oxygen Generator

Pressure Swing Adsorption (PSA) Technology

01

Air Intake

Ambient air is compressed and supplied to the adsorption tower.

→
02

Nitrogen Adsorption

High-performance zeolite molecular sieve selectively adsorbs and removes nitrogen.

→
03

Oxygen Extraction

Continuously generates and supplies high-purity oxygen at 90–93% purity.

◔
24 HrsContinuous Operation
◎
90±3%Oxygen Purity
⚡
InstantSwitch-On, No Prep
$
-75%Cost vs. Cylinders

High-performance zeolite adsorbent extracts nitrogen through its vast pore structure — delivering stable, high-purity oxygen the instant the unit is switched on.

Line-up | Product & Power Options

Configurable performance and power source to match any vessel

AC Power Model O2MOS unit

AC Power Models

3 LPM @ 90% / 7 LPM @ 90%

For vessels with onboard AC generator power

DC Power Model O2MOS unit

DC Power Models

DC 12V or DC 24V

For vessels running on battery / DC power only

Performance3 LPM @ 90%7 LPM @ 90%
AC Power✓ Available✓ Available
DC Power (12V / 24V)✓ Available✓ Available
Smart / IoT MonitoringN/A✓ Available
Smart Model with internet access 📶 Smart Model — remote monitoring of oxygen flow, pressure and alerts, ideal for fleet operators and distributor after-sales support.

Basic System Configuration

Five core components installed as a complete onboard system

1
PSA Oxygen Generator

PSA Oxygen Generator

2
Power Supply (Optional) AC→DC Converter

Power Supply (Optional) AC→DC Converter

3
Control & Monitoring Unit

Control & Monitoring Unit

4
Flow Meter for Fish Tank

Flow Meter for Fish Tank

5
Air Stone

Air Stone

Delivery installation with self-setup, or full on-site installation service — both supported.

Installation at Site 1

Field-proven installations on active Korean fishing vessels

On-deck installation and commissioning
Compact unit fitted below deck storage
Technician connecting flow lines to tank
PSA Oxygen Generator
O2MOS-3LPM
Flow Meter + Air Stone

Installation at Site 2

Field-proven installations on active Korean fishing vessels

Installation at Site 2 — row 1
Installation at Site 2 — row 2
Fishing vessel deck with fish tank hatch

Essential for
Small Fishing Vessels

▤
Smaller tanks = less oxygen buffer
↘
Faster oxygen depletion under load
↻
Continuous oxygen supply, day and night
🌡
Critical during summer and long operations

Safety Comparison

Oxygen generators remove the risks that come with pressurized cylinders onboard

🛡 O2MOS Oxygen Generator

  • ✓ No high pressure (≤ 1.5 bar)
  • ✓ Continuous, on-demand generation
  • ✓ Safer for daily onboard use
  • ✓ No cylinder handling or replacement
Only ~200W of power required to operate

🚫 High-Pressure Cylinders

  • ✕ Explosion risk under vibration/heat
  • ✕ Heavy handling on unstable decks
  • ✕ Requires frequent replacement
  • ✕ Recurring refill cost and logistics

Operational Benefits

From daily operations to bottom-line impact

CategoryProblem Without OxygenBenefit of O2MOS Generator
Live Fish SurvivalLow dissolved oxygen causes stress and mortalityStable oxygen supply improves survival rate
Catch QualityFish quality degrades rapidly after captureMaintains freshness and market value
Extended OperationLimited transport time due to oxygen shortageAllows longer fishing and transport time
Safety & HandlingHeavy oxygen cylinders are risky onboardNo high-pressure cylinders required
Operating CostRecurring cost of oxygen refillingLower long-term operating cost

Business & Market Value for Vessel Owners

Why distributors and vessel owners across Asia are adopting O2MOS

$
Reduced Fish Mortality
Higher survival rate and stable income
📊
Improved Catch Quality
Higher market price per kg
◔
Extended Operation Time
More flexible fishing and transport
↘
Lower Operating Cost
Eliminates recurring oxygen refilling
⬡
Scalable Application
Applicable to boats, live fish trucks, and tanks

Proper Use & Maintenance

Simple routine care keeps the system running reliably for years

⚙

Understand the Operating Instructions

Fully review the manual before first use to ensure correct operation.

📍

Install in an Optimal Location

Choose a stable, ventilated location for long-term, trouble-free operation.

◎

Install a Dedicated Air Stone

Fit a separate air stone inside the fish tank (sold separately) for even oxygen diffusion.

👁

Perform Regular Self-Inspection

Check nitrogen exhaust sound, oxygen flow rate, and pressure periodically.

🔧

Inspect the Air Stone Regularly

Check for leaks or clogging and take corrective action as needed.

Purchase, Installation & After-Sales Service

Built for distributor confidence and long-term customer trust

🚚
Delivery with self-installation available
⚙
Built-in self-diagnosis and fault checking
📅
Periodic on-site inspection and delivery service
🔧
Factory return repair service provided

🏅 5-Year

Manufacturer Service Responsibility

Long-term coverage that builds confidence for overseas distributors and end customers alike.

⚡ AC & DC Models Available

Stable oxygen supply under any onboard power condition — a dependable fit for every fleet configuration across Asian coastal and island operations.

CONCLUSION

For Small Fishing Vessels,
Oxygen Generators Are Not Optional.

They are essential for survival, quality, and profit — engineered for real conditions at sea.

O2MOS
PSA OXYGEN GENERATOR

Let's Talk
Export Partnership

Distributor & OEM inquiries welcome across Japan and Asia-Pacific aquaculture markets.

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

O2MOS

Goyang-si, Gyeonggi-do, Republic of Korea
Manufacturer of O2MOS PSA Oxygen Generators for aquaculture, live fish transport, and marine applications.

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