ISO 13485-Certified PSA Medical Oxygen Generator for Hospitals & Healthcare Facilities – MedO
MedO is Absstem’s ISO 13485-certified PSA medical oxygen generator, engineered for hospitals, nursing homes, and healthcare facilities requiring a dependable on-site oxygen supply. Delivering 93–96% medical oxygen purity, MedO supports ICUs, operation theatres, emergency departments, and MGPS networks with reliable 24×7 performance.
Available from 100 LPM to 60,000+ LPM, every MedO system is manufactured in India, remotely monitorable through IIoT*, and built for long-term operational savings.
Looking for an industrial oxygen generator for steel, aquaculture, wastewater treatment, or ozone generation instead? See Idos – Absstem’s industrial PSA oxygen generator for manufacturing and process industries.
ISO 13485:2016
Certified by TÜV Nord
93–96% Purity
IIoT Remote Monitoring*
T&C Apply
Proudly
Made in India
Designed for Extreme
What is a Medical Oxygen Generator?
A medical oxygen generator produces medical-grade oxygen directly from ambient air using Pressure Swing Adsorption (PSA) technology. By separating nitrogen with zeolite molecular sieves, it continuously supplies 93–96% oxygen without depending on cylinders or liquid oxygen deliveries.
For small hospitals, nursing homes, and budget-constrained healthcare facilities, see MedO C – Absstem’s affordable medical oxygen generator designed for smaller facilities.
How a PSA Medical Oxygen Generator Works
MedO: Delivered as a Complete On-Site Medical Oxygen System
MedO systems are engineered to meet applicable medical oxygen standards and hospital safety requirements, including ISO 13485–aligned manufacturing practices.
PSA oxygen generation module with twin adsorption towers
Air compressor, dryer, and multi-stage filtration
Oxygen storage tank with integrated safety devices
PLC automation panel with touchscreen HMI
Installation, commissioning, and operator training
Long-term AMC/CMC support through Absstem Shield
Typical Performance of Medical Oxygen Plant
| Parameter | MedO Capability |
|---|---|
| Oxygen Purity | 93–96% |
| Oxygen Flow | 1 to 3000 Nm³/hr |
| Delivery Pressure | 5.5 barg (higher pressures available on demand) |
| Operation | Continuous 24×7 | Automatic idle mode | Auto-restart on demand |
| Monitoring | IIoT-enabled*: real-time purity, pressure, flow, compressor & sieve status |
| Molecular Sieve Warranty | 10-year performance |
| Certifications | ISO 13485:2016 (TÜV Nord) | ISO 9001:2015 | ISO 14001:2015 | ISO 45001:2018 |
| Compliances | Indian Pharmacopoeia | WHO | United States Pharmacopeia | British Pharmacopoeia |
*Terms & conditions apply
MedO Models – Right-Sized for Every Hospital
| Model | Capacity | Equiv. Cylinders/Day | Typical Hospital Size | Indicative Price |
|---|---|---|---|---|
| MedO 6 | 100 LPM | ~23 cylinders/day | Up to 50-bed hospital / nursing home | ₹ Contact for quote |
| MedO 12.5 | 200 LPM | ~45 cylinders/day | 50–100 bed hospital | ₹ Contact for quote |
| MedO 15 | 250 LPM | ~54 cylinders/day | 100–150 bed hospital | ₹ Contact for quote |
| MedO 25 | 425 LPM | ~90 cylinders/day | 150–300 bed hospital | ₹ Contact for quote |
| MedO 50 | 750 LPM | ~161 cylinders/day | 300–600 bed hospital | ₹ Contact for quote |
| MedO 110 | 1,800 LPM | ~400 cylinders/day | 600–1,000+ bed hospital | ₹ Contact for quote |
| Custom | Up to 60,000+ LPM | Per requirement | Large tertiary / multi-specialty | ₹ Contact for quote |
Standards, Certifications & Regulatory Compliance
MedO is designed, manufactured, and delivered in compliance with all applicable Indian and international standards for medical oxygen generation and hospital gas systems.
| Standard / Body | Coverage | MedO Status |
|---|---|---|
| ISO 13485:2016 (TÜV Nord) | Medical device quality management system for the manufacturer | Certified ✔ |
| Indian Pharmacopoeia (IP) | O₂ purity 93–96% for medical use | Compliant ✔ |
| WHO Technical Specifications | Medical oxygen systems for healthcare facilities | Compliant ✔ |
| US Pharmacopoeia (USP) | US medical oxygen purity standard | Compliant ✔ |
| British Pharmacopoeia (BP) | UK medical oxygen purity standard | Compliant ✔ |
| HTM 02-01 | UK NHS medical gas pipeline systems | Engineering aligned ✔ |
| ISO 7396-1 | Medical gas pipeline design & performance | Engineering aligned ✔ |
| NABH Standards | Hospital oxygen supply requirements (India) | Supports compliance ✔ |
| PESO Gas Cylinders Rules 2016 | PSA generators are EXEMPT from licence requirement | No licence needed ✔ |
Why Hospitals Choose MedO as Their On-Site Medical Oxygen Plant
Certified for Healthcare
Manufactured under ISO 13485-certified quality systems with documentation suitable for NABH audits and government procurement.
Predictive Maintenance
IIoT monitoring* continuously tracks purity, pressure, compressor health, and operating parameters to reduce unexpected downtime.
Engineered for Reliability
Automatic adsorption cycling, idle mode, and intelligent restart maintain uninterrupted oxygen generation during continuous operation.
Single-Source Project Delivery
From design and manufacturing to commissioning and after-sales service, Absstem manages the complete project lifecycle.
Technology & Reliability of On-Site Medical Oxygen Plant
10-year molecular sieve warranty
Predictive IIoT* diagnostics
Automatic energy-saving idle mode
Technology that reduces maintenance
Smart automation with PLC control
On-Site PSA Oxygen vs Cylinders vs Liquid Oxygen – What’s Best for Your Hospital?
| Factor | O₂ Cylinders | Liquid Oxygen (LOX) | MedO On-Site PSA |
|---|---|---|---|
| Cost per Nm³ | ₹30–50/Nm³ (equiv.) | ₹15–25/Nm³ | ₹8–10/Nm³ |
| Supply reliability | Delivery-dependent | Delivery-dependent | 24/7 from ambient air |
| PESO licence | Required for storage | Required for LOX tank | NOT required for PSA generator |
| Purity control | Fixed by vendor | Fixed by vendor | Automated continuous monitoring |
| Boil-off/waste loss | 5–10% dead volume per cylinder | 3%/day boil-off regardless of use | Zero waste – generated on demand |
| IIoT monitoring* | None | YES | Real-time remote (Add-on Facility) |
| Payback period | N/A – recurring cost forever | N/A – recurring cost forever | Typically 12–36 months |
The 2021 medical oxygen crisis in India demonstrated what happens when hospital oxygen supply depends on cylinders and tankers. An on-site PSA generator is as reliable as your electricity supply. It is the only oxygen source that cannot be disrupted by logistics failures, vendor shortages, or transport strikes.
Estimate Your Return on Investment
The operating cost of on-site PSA oxygen generation is typically 60–75% lower than cylinder-based supply. The table below provides indicative savings based on typical Indian hospital consumption.
| Hospital Size | Monthly Cylinder Cost (est.) | Monthly Saving | Typical Payback |
|---|---|---|---|
| 50-bed hospital | ₹0.5–1 lakh/month | ₹40,000–80,000/month | 18–30 months |
| 100-bed hospital | ₹1–2 lakh/month | ₹80,000–1.6 lakh/month | 12–22 months |
| 300-bed hospital | ₹3–5 lakh/month | ₹2.5–4 lakh/month | 12–18 months |
| 500-bed hospital | ₹5–10 lakh/month | ₹4–8.5 lakh/month | 10–16 months |
Note: Cylinder cost calculated at ₹30-50–/Nm³ (Cylinder cost: ₹210-350/-) (India market benchmark 2025–26). MedO running cost ₹8–10/Nm³ (electricity only). Investment and payback are indicative – use Absstem’s free ROI calculator for your exact figures.
Calculate your hospital’s exact savings in 2 minutes
Applications of PSA Medical Oxygen Generators
Healthcare
Reliable oxygen generation for ICUs, emergency departments, operating theatres, and central MGPS systems.
Nursing Homes
Compact systems with low maintenance requirements, making them ideal for facilities with limited technical staff.
Medical Colleges
Supports high-demand clinical environments, simulation labs, teaching hospitals, and multi-specialty campuses.
Government Hospitals
Built for public healthcare projects requiring regulatory compliance, high uptime, and dependable long-term operation.
Private Hospitals
Reduce cylinder expenditure while maintaining consistent oxygen purity for premium patient care.
Community Health Centres
Produce oxygen locally in remote locations where cylinder transportation is expensive or unreliable.
Explore More Oxygen & Nitrogen Solutions
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Absstem’s all-inclusive AMC ensuring 24×7 uptime, preventive care, and remote support for oxygen and nitrogen systems.
Trusted by Hospitals Across India
FAQs – MedO (Medical Oxygen Generator)
What is the difference between a PSA generator and a PSA plant?
There is no technical difference between a PSA generator and a PSA plant. Both use PSA technology to generate oxygen on-site from atmospheric air. The term generator refers to the core separation unit, while plant means the complete on-site system with compressors, storage, controls, installation, and commissioning. At Absstem, every PSA generator is delivered as a fully installed PSA plant.
What is a medical oxygen generator?
A medical oxygen generator is a PSA-based system that produces medical-grade oxygen on-site from atmospheric air. It replaces cylinders and liquid oxygen by delivering continuous, hospital-grade oxygen directly into the medical gas pipeline network. MedO is Absstem’s hospital-grade PSA medical oxygen generator, built for 24×7 critical care environments.
How does a PSA medical oxygen generator work?
A PSA medical oxygen generator separates oxygen from atmospheric air using zeolite molecular sieves. Compressed, dried air enters twin adsorber vessels; the zeolite selectively retains nitrogen, allowing oxygen to pass through at 93–96% purity. One vessel produces while the other regenerates, ensuring continuous output. The oxygen is stored in a buffer tank and supplied to the hospital MGPS at 5.5 barg.
Is oxygen produced by MedO safe for patient use?
Yes. MedO produces oxygen at 93±3% purity, compliant with Indian Pharmacopoeia, WHO, USP, and British Pharmacopoeia standards for medical oxygen. Extensive international clinical trials confirm that PSA-generated oxygen at 93±3% is medically equivalent to 99.5% cryogenic oxygen for all applications including neonatal care, anaesthesia, ICU, and ventilator use. MedO’s automated purity monitoring diverts off-spec gas and switches to backup if purity falls below 90%.
Can MedO replace oxygen cylinders completely in hospitals?
Yes. MedO is designed to function as the primary oxygen source for hospitals, connecting directly to the MGPS and eliminating the need for a cylinder manifold as primary supply. A cylinder manifold can be retained as emergency backup – which Absstem recommends as good practice. Hundreds of Indian hospitals now operate primarily or entirely on MedO with no cylinder dependency.
How do hospitals select the right MedO capacity?
MedO capacity is determined based on hospital bed count, oxygen pipeline load, ICU and OT demand, and peak usage patterns. Absstem’s engineers evaluate these parameters and design a customised system to ensure stable purity, pressure, and long-term reliability.
Is ISO 13485 certification required for a medical oxygen plant in India?
ISO 13485 is the international quality management standard for medical device manufacturers. While not yet mandated by regulation for PSA oxygen plant manufacturers in India, it is increasingly required by NABH-accredited hospitals, government hospital tenders, and procurement committees evaluating supplier quality systems. Absstem is one of India’s only PSA oxygen plant manufacturers certified to ISO 13485:2016 by TÜV Nord, Germany – an internationally recognised external certification body.
What is the difference between MedO and Idos?
MedO is Absstem’s ISO 13485-certified medical oxygen generator, purpose-built for hospitals and healthcare facilities with pharmacopoeia-compliant 93–96% purity and MGPS pipeline integration. Idos is Absstem’s industrial PSA oxygen generator for manufacturing and process applications such as steel, aquaculture, wastewater treatment, and ozone generation. If your requirement is industrial rather than medical, see Idos instead.
What maintenance does MedO need?
Routine MedO maintenance: air filter replacement (monthly), compressor servicing (quarterly), desiccant dryer bead check (annually), IIoT-monitored Zeolite Molecular Sieves performance (continuous). The Zeolite Molecular Sieves is performance-warranty for 10 years under normal operating conditions. Absstem Shield provides AMC and CMC with pan-India service coverage.
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Discuss Your Oxygen Requirement
Whether you’re planning a new hospital, expanding an existing MGPS network, or replacing cylinder dependency, our engineers can recommend the right MedO configuration based on your oxygen demand.