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AIRSEP CORPORATION · Model AS077-1
Portable Oxygen Concentrator, 1-5 LPM equivalent.
Intended use: A mobile/portable mains electricity (AC-powered) device designed to concentrate oxygen (O2) from ambient air and deliver the concentrated O2, typically through an attached nasal cannula, to a patient requiring oxygen therapy. It processes the air through an internal filtration system, e.g., a molecular sieve (zeolite granules or membranes), having a large total surface area to separate nitrogen (N2) from the air. It typically consists of an air compressor, filters, dual chambers, a reservoir and controls. The O2 concentration is variable depending on the flow rate utilized. It is used in a home, institution, or a vehicle and typically has internal batteries for transportable use.
Key tips
- ·Don't extend filter/tubing replacement intervals to save cost - this is an infection-control issue, not just a performance one.
- ·Flow accuracy drift is often the earliest sign of a failing sensor, well before an outright alarm.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Low O2 concentration / purity alarm
HighSymptoms: Oxygen-purity alarm, delivered O2 below spec, oxygen indicator amber / red.
Root cause: Aged sieve beds / molecular sieve, a valve-block fault, an air leak, or an inlet-filter blockage.
Compressor fault / will not build pressure
MediumSymptoms: Weak or no flow, compressor noisy or hot, thermal cut-out, unit shuts down.
Root cause: Worn compressor / valve heads, or a cooling-fan fault.
Battery will not hold charge
HighSymptoms: Short run time, will not reach full charge, sudden shutdown.
Root cause: Aged battery pack or a charger fault.
Pulse-dose / bolus-trigger fault
MediumSymptoms: Not triggering on inhalation, weak or no bolus, breath-detect alarm.
Root cause: Pressure-sensor / trigger fault, a cannula leak, or a nasal-cannula mismatch.
Filter blockage / overheating
MediumSymptoms: Reduced output, unit hot, over-temperature shutdown.
Root cause: Dirty gross-particle / cabinet filter or a blocked air path.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Battery pack
Class Periodic replacementRel. cost $$R&R Easy
Sieve-bed / column assembly
Class Periodic replacementRel. cost $$$R&R Moderate
Compressor / valve-head kit
Class Periodic replacementRel. cost $$$R&R Difficult
Inlet / cabinet filters
Class ConsumableRel. cost $R&R Easy
Pressure / trigger sensor
Class Periodic replacementRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Battery pack | Periodic replacement | $$ | Easy |
| Sieve-bed / column assembly | Periodic replacement | $$$ | Moderate |
| Compressor / valve-head kit | Periodic replacement | $$$ | Difficult |
| Inlet / cabinet filters | Consumable | $ | Easy |
| Pressure / trigger sensor | Periodic replacement | $$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Filter and tubing replacement
- ·Flow accuracy check
- ·Annual full PM
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Low O2 purity alarm
- Verify O2 concentration with a calibrated analyser at the outlet at the rated setting.
- Replace / clean the inlet and cabinet filters.
- Check for air leaks in the pneumatic circuit.
- Replace the sieve beds if purity is still low.
- Rebuild or replace the compressor if purity does not recover.
Symptom: Not triggering / weak bolus
- Fit the correct single-lumen nasal cannula and check for leaks / kinks.
- Test the breath-detect on a normal inhalation.
- Clean / check the pressure-sensing port.
- Adjust the trigger sensitivity if provided.
- Replace the pressure / trigger sensor if it will not detect a good breath.
Technical Specs
- MRI safety
- Labeling does not contain MRI Safety Information
- Sterile
- No
- Single use
- No
- Prescription use
- Rx only
- FDA distribution status
- In Commercial Distribution
- Device type (GMDN)
- Mobile/portable oxygen concentrator
- FDA product classification
- Generator, Oxygen, Portable
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Respiratory Therapy department
- Patient floors
- Emergency Department
- Home care (portable units)
Documents & Manuals
No documents available for this device yet.
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