ISO 13485-Certified PSA Medical Oxygen Generator for Hospitals & Healthcare Facilities – MedO
Absstem’s MedO is a PSA-based on-site medical oxygen generator designed for hospitals, nursing homes, and healthcare institutions across India. MedO delivers 93–96% oxygen purity compliant with Indian Pharmacopoeia, WHO, USP, and British Pharmacopoeia – ensuring safe, uninterrupted oxygen supply to ICUs, operation theatres, emergency wards, and central MGPS pipelines.
From 100 LPM community health centres to 1,000+ bed multi-specialty hospitals, MedO is engineered for 24×7 critical care reliability – manufactured to ISO 13485:2016 quality standards certified by TÜV Nord, Germany, and monitored continuously via IIoT remote diagnostics.
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.
What is a Medical Oxygen Generator?
A medical oxygen generator is a PSA (Pressure Swing Adsorption) system that produces medical-grade oxygen on-site directly from atmospheric air. Using zeolite molecular sieves, the system selectively removes nitrogen from compressed, dried air – allowing high-purity oxygen to pass through continuously.
MedO replaces cylinder deliveries and liquid oxygen supply by generating oxygen directly at your facility and feeding it into your Medical Gas Pipeline System (MGPS). There are no delivery schedules, no cylinder rental fees, no supply chain risks, and no PESO Gas Cylinder Storage Licence requirement.
Oxygen produced by PSA generators at 93±3% purity is clinically validated as equivalent to 99.5% cryogenic oxygen for all medical applications – confirmed by Indian Pharmacopoeia, USP, British Pharmacopoeia, and WHO Technical Specifications for Medical Oxygen Systems.
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
Air Intake & Purification
Ambient air is filtered to remove dust, compressed by an oil-free or oil-lubricated compressor, then dried and purified through multi-stage filtration to remove moisture, oil vapour, and micro-particulates before entering the PSA module.
PSA Oxygen Separation (Zeolite Molecular Sieves)
Compressed, purified air passes through twin adsorber vessels packed with zeolite molecular sieves. The zeolite selectively adsorbs nitrogen, CO₂, and moisture – allowing oxygen to pass through at 93–96% purity. While one vessel adsorbs, the other regenerates automatically, ensuring continuous, uninterrupted oxygen output.
Oxygen Storage & Hospital Pipeline Delivery
High-purity oxygen accumulates in a pressurised buffer tank and is supplied at 5.5 barg directly into the hospital’s MGPS. Automated pressure and purity controls maintain consistent delivery to every ward outlet – ICU, OT, emergency, and general wards.
IIoT Monitoring & Automated Control
Absstem’s PLC-based control system continuously monitors oxygen purity, pressure, flow, compressor status, and sieve performance. All parameters are transmitted to Absstem’s IIoT platform – enabling remote diagnostics, predictive maintenance alerts, and automatic idle mode to reduce electricity consumption during low-demand periods.
Typical Performance of Medical Oxygen Plant
| Parameter | MedO Capability |
|---|---|
| Oxygen Purity | 93–96% (Indian Pharmacopoeia, WHO, USP, BP compliant) | Up to 99.5% on demand |
| Oxygen Flow | 1 to 1000 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 |
| Certifications | ISO 13485:2016 (TÜV Nord) | Indian Pharmacopoeia | WHO | USP | BP |
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 generator modules (twin adsorber vessels, zeolite molecular sieves)
Air compressor(s) with integrated dryer and multi-stage filtration
Pressurised oxygen buffer tank with safety pressure relief systems
PLC automation panel with HD touchscreen HMI
Complete on-site installation and commissioning by Absstem engineers
Operator training, & long-term AMC and CMC through Absstem Shield
Why Hospitals Choose MedO as Their On-Site Medical Oxygen Plant
India’s ISO 13485-Certified Medical Oxygen Manufacturer
One of India’s only PSA oxygen plant manufacturers certified to ISO 13485:2016 by TÜV Nord, Germany – the international standard for medical device quality management. Every MedO plant is manufactured under this quality system, with full documentation for NABH audits and government tenders.
IIoT Remote Monitoring – 24/7, Standard on Every Plant
Every MedO ships with IIoT-enabled PLC and remote diagnostics. Oxygen purity, pressure, compressor status, and sieve performance are monitored continuously. No other Indian medical oxygen manufacturer offers this as standard.
Designed for Zero-Downtime Critical Care Environments
MedO uses redundant adsorber cycles, automated backup switching, and low air-to-oxygen ratios that reduce thermal stress on the sieve. Automatic idle mode during low-demand periods and auto-restart on demand ensure oxygen is always available at the ward outlet – whether the hospital is at 20% or 100% occupancy.
Complete Turnkey Delivery – One Team, Full Responsibility
From application study and hospital layout planning to in-house manufacturing, on-site installation, MGPS integration, commissioning, pharmacopoeia testing, operator training, and long-term AMC through Absstem Shield. You deal with one team and one accountability chain from day one to year ten.
Technology & Reliability of On-Site Medical Oxygen Plant
10-year molecular sieve performance warranty
IIoT remote monitoring system (real-time purity, pressure, flow alerts)
Automatic idle mode with auto start/stop
Industrial-grade HD touchscreen HMI
Absstem Shield AMC and CMC for hospital-grade uptime
Applications of PSA Medical Oxygen Generators
Healthcare
Ensure continuous, pharmacopeia-compliant oxygen supply across ICUs, OTs, and pipelines with an integrated PSA medical oxygen system for 24×7 reliability.
Nursing Homes
Provide dependable oxygen for patient rooms, minor procedures, and emergency care with a space-efficient, easy-to-maintain on-site oxygen plant.
Medical Colleges
Support teaching hospitals, labs, and multi-specialty wards with stable, on-site oxygen supply designed for round-the-clock academic and clinical operations.
Government Hospitals
Ensure uninterrupted, medical-grade oxygen supply for ICUs, emergency wards, and central pipelines with a dependable on-site system built for high-demand public healthcare.
Private Hospitals
Reduce cylinder dependency and operating costs while ensuring continuous oxygen purity and pressure for critical care, OTs, and specialty departments.
Community Health Centres
Deliver safe and consistent medical oxygen in remote or semi-urban facilities without relying on cylinder logistics or external supply chains.
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Trusted By Thousands
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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