Oxygen Concentrator Maintenance for Healthcare Facilities

Why Maintenance Matters

Oxygen concentrators are among the most critical pieces of equipment in a skilled nursing facility or medical office. They deliver supplemental oxygen to patients who depend on it for respiratory support — and a concentrator that is not properly maintained may deliver sub-therapeutic oxygen concentrations without triggering any obvious alarm.

Unlike most medical equipment failures, which are immediately apparent, an oxygen concentrator delivering 85% oxygen concentration instead of 95% may not cause visible distress in a patient with mild oxygen needs — but it creates real physiological risk, particularly for patients with chronic respiratory disease, post-surgical patients, and elderly residents with limited respiratory reserve.

Regular maintenance prevents this scenario and extends equipment service life. Oxygen concentrators are expensive to replace and, in many facilities, are needed continuously for active resident care. Maintaining them properly is both a compliance obligation and a direct patient safety matter.

Routine Maintenance Tasks

Many concentrator maintenance tasks can be performed by trained facility staff as part of a routine maintenance schedule:

Cabinet filter cleaning (weekly to monthly) — Most oxygen concentrators have one or more foam or particulate filters on their intake vents. These filters prevent dust and particulates from entering the compressor and sieve bed. Clogged intake filters reduce airflow and cause the concentrator to work harder, reducing efficiency and accelerating component wear. Filters should be cleaned weekly in high-dust environments and monthly in cleaner settings, or per the manufacturer's schedule.

Bacterial/HEPA filter inspection — Some concentrators have a bacterial filter on the outlet side. These should be inspected per the manufacturer's schedule and replaced when discolored or damaged.

External cleaning — The concentrator exterior should be wiped down with an appropriate disinfectant regularly. Pay attention to the ventilation areas — blocked vents cause overheating.

Alarm testing — Most concentrators have a low-concentration alarm. Testing this alarm periodically verifies that it will function when actually needed.

Usage logging — Some facilities log daily concentrator operating hours. This information is useful for tracking when service intervals are due and for identifying concentrators with unusually high or low use patterns.

Annual Professional Service

In addition to routine staff-performed maintenance, oxygen concentrators require annual professional service by a qualified biomedical technician. Annual service typically includes:

• Filter replacement — Internal filters that can't be accessed without disassembling the unit, including the sieve bed inlet filter and any internal bacterial filters
• Flow rate verification — Using a calibrated flow meter, the technician verifies that the concentrator delivers its rated flow rate at all settings
• Oxygen concentration output testing — Using an oxygen analyzer, the technician verifies that the unit produces oxygen at the specified purity (typically 87–96% depending on the model and settings)
• Internal component inspection — Compressor function, tubing condition, valve operation, and sieve bed status
• Alarm function testing — All alarms are tested under controlled conditions
• Service documentation — A written service report is provided documenting all findings and actions taken

Common Problems and Warning Signs

Staff should be trained to recognize these warning signs that a concentrator needs service:

• Concentration alarm sounding (remove from patient use immediately and arrange service)
• Reduced flow rate — residents reporting that oxygen "doesn't feel right"
• Unusual noises — clicking, rattling, or compressor sounds that are louder or different than normal
• Overheating — unit is unusually warm or thermal protection is activating
• Error codes on the display
• Increased power draw (detected if you're monitoring energy use)

Common failure modes in aging concentrators include sieve bed exhaustion (the molecular sieve material that separates oxygen from nitrogen becomes saturated and less effective), compressor wear, valve failure, and cooling fan failure. All of these can be diagnosed and addressed by an experienced biomedical technician.

Arranging Service

Medical Equipment Repair Network connects healthcare facilities with biomedical technicians experienced in oxygen concentrator service. We service all major brands including Respironics (Philips), AirSep, Invacare Platinum, Drive Medical, and SeQual Eclipse. Submit a service request and we'll connect you with a qualified local technician within 24 hours.

Oxygen Concentrator Maintenance — Find a Technician by State

Medical Equipment Repair Network connects healthcare facilities with qualified local biomedical technicians for oxygen concentrator maintenance and related services nationwide. Select your state to find technicians in your area:

Written by the Medical Equipment Repair Network editorial team. Medical Equipment Repair Network connects healthcare facilities across all 50 states with qualified local biomedical technicians for repair, calibration, and compliance services.