Secondhand Birmed 5A 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 25.01.2026

Birmed-5A Medical Oxygen Concentrator Analysis Report

Device Identification

The product analyzed in the visual is an electrically powered medical device that provides high-concentration oxygen to the patient by separating ambient air to support respiration. The device is a fixed-type (home-use) model categorized as a “Medical Oxygen Concentrator”.

Brand and Model

The brand and model information of the product is written clearly, in large, readable letters on the information label located on the device’s front panel. Accordingly, the device’s brand is Birmed, and its model is Birmed-5A. Although there is no brand logo or emblem on the device, the product identity is clearly stated as text.

Originality

The print quality of the label on the front of the device, the neat alignment of the texts in English and Turkish, and its standard industrial design (case structure) indicate that the product is an original Birmed-5A product. However, the device casing shares similar mold characteristics with some generic (OEM) oxygen concentrators on the market. The fonts and layout on the panel appear factory-made.

Areas of Use

This device is designed for patients suffering from COPD (Chronic Obstructive Pulmonary Disease), asthma, or chronic respiratory failure to receive long-term oxygen therapy (LTOT) in a home environment. It takes in ambient air, filters out nitrogen, and delivers oxygen to the patient with over 90% purity. Thanks to its dual-flow structure, it appears capable of providing oxygen output from two different channels, as permitted by its technical capacity. It is suitable for use in home care services and clinics.

Quantity Information

The visuals show 1 oxygen concentrator main unit and 1 humidifier water bottle attached to the device.

General Condition

The product is second-hand and in used condition. There are noticeable signs of use on its casing and label area. The device is not in “new” or “mint” condition; it is in moderate condition, showing signs of wear.

Physical Deformation

There are yellowing marks on the device’s outer casing and control panel that have occurred over time. Especially on the yellow information panel at the front, there are noticeable stains and color fading in places. There are uncleaned dust and dirt accumulations on the upper white plastic parts. The flowmeter adjustment knob on the right side of the device is silver-colored, but a different label or cap detail is visible on the left knob, indicating a visual inconsistency between these two knobs.

Mechanical Components

On the front of the device, there are two mechanical flowmeter tubes. The balls inside the tubes indicate the oxygen level when the adjustment knob is turned. A mechanical power switch with “0/1” positions is present on the front panel. Additionally, the outlet port where the humidifier water bottle connects to the device and a fastening strap are visible on the lower right side. The humidifier bottle’s cap is brown and attached to the connection hose inlet. An integrated black carrying handle is located on the top of the device.

Electronic Components

A digital hour display (LCD screen) with the code “DHC3L” is located on the device’s front panel. Immediately above this screen, there are three LED indicator lights signaling the device’s status:

• Power – Green
• Low pressure – Yellow/Orange
• High pressure – Red

Since the device was not connected to power or turned on at the time of the visual, the activity of these electronic components cannot be confirmed via the visual.

Accessories

A humidifier water bottle is mounted on the front right side of the device. The humidifier bottle is transparent white, and its cap is dark brown. It is not clear from the visual whether there is liquid inside the bottle. Patient-side accessories such as a nasal cannula (nose hose) or mask are not present on the device.

Battery Status

This type of fixed home oxygen concentrator operates with mains electricity, not with an internal battery. There is no indication of a battery or any sign of portability (e.g., battery charge indicator) in the visual.

Label Information

On the yellow panel on the front of the device, under the heading “OPERATING INSTRUCTIONS / KULLANIM TALİMATLARI” (Operating Instructions), the following items and warnings are present in both English and Turkish:

• Birmed-5A MEDICAL OXYGEN CONCENTRATOR
• That the user manual should be read before operating the device.
• Adding distilled water to the humidifier (between Max-Min levels).
• That the switch should be turned on after the green light illuminates.
• Flow adjustment instructions (adjust the ball to the center).
• WARNING / DİKKAT: That it should be kept away from fire and cigarettes, a warning not to smoke near the machine.
• Numbers from 1 to 5 and the “L/MINO2” (Liters of Oxygen per Minute) indication on the flowmeters.
• Below the digital hour screen: “DHC3L” code.

Screen Analysis

The small LCD screen on the device is labeled with the phrase “hours”. This screen functions as an “hour meter”, showing the total number of hours the device has operated. Since the device is currently off, no numbers are visible on the screen.

Dimensions and Compatibility

The product’s flowmeter tubes are rated in the 0-5 L/minute range. This indicates that the device is a 5 Liter capacity oxygen concentrator. It is appropriately sized for standard adult oxygen therapy. For infant or pediatric use, a flowmeter with very low flow sensitivity (such as 0.125-0.5 L) cannot be discerned in the visual; standard scaling starts from 1 liter.

Current Malfunction

No broken parts or active error signals (due to the device being off) could be detected in the visual. However, the visually different appearance of the flow adjustment knobs (the right one bright silver, the left one black patterned) suggests that one of the knobs might have been lost and subsequently replaced with an aftermarket part, or that it has undergone repair.

Potential Malfunction Risk

The yellowing on the device’s outer casing and the appearance of the humidifier bottle indicate that the device has been used for a long time or stored under unsuitable conditions (sunlight, dusty environment). A common risk in such devices during long-term storage is the humidification of “zeolite” tanks (the chemical substance that separates oxygen) and a decrease in their efficiency. Furthermore, a used humidifier bottle can pose a risk in terms of hygiene and calcification; its replacement is recommended.