Defective Secondhand Devilbiss Compact 525KS 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 16.10.2025

DeVilbiss 525KS Oxygen Concentrator Analysis Report

Product Identification and Areas of Use

The device shown in the visuals is a DeVilbiss Healthcare brand oxygen concentrator. Such devices take air from the environment, separate nitrogen, and are used to deliver concentrated oxygen to patients requiring respiratory support. There is 1 unit of oxygen concentrator in the visuals.

Brand and Model Information

Brand and model information has been clearly identified as a result of a detailed examination of the labels on the device. Its brand is DeVilbiss Healthcare, and its model is 525KS, indicated by the REF code. This model is described as “5 Liter Oxygen Concentrator with OSD”. The logo and inscriptions on the device appear original.

General Condition and State

The general condition of the product is assessed as used. There are various marks on the device’s gray plastic casing, caused by usage. This indicates that the device has been actively used but does not have significant damage that would affect its functionality. Its general condition is at a normal level for a second-hand device.

Physical Deformation Analysis

During the visual inspection of the device’s casing, the following conditions were observed:

• Small white spots and scratches are present on the side and front surfaces of the device.
• Overall, dirt and dust accumulations are seen sporadically on the surface.
• No cracks, breaks, or severe dents that would hinder the device’s function have been detected.

Mechanical and Electronic Components

Visually evaluating the device’s mechanical and electronic components, no obvious issues are observed. Its wheels are intact and in place. The power button, flow adjustment knob (flowmeter), and reset button on the front panel are physically in good condition. The OSD (Oxygen Sensing Device) panel is intact, and the icons and texts indicating “Normal Oxygen”, “Low Oxygen”, and “Service Required” statuses are clearly legible on it.

Accessories and Connection Points

The following accessories are included with the product in the visual:

• Humidifier Water Bottle: Attached to the front section of the device and ready for use.
• Power Cable: A black power cable connected to the device is present.

Apart from these, no other accessories such as an oxygen cannula or mask are present in the visuals.

Label Information

The following information is legible on the main label located on the front surface of the device:

• Brand: DeVilbiss Healthcare
• REF Code: 525KS
• Serial Number (SN): F6 91073 KS

The label also contains warning and informational texts in various languages stating that the device is a 5-liter oxygen concentrator. There is also a warning label on the front panel indicating that smoking is prohibited.

Potential Malfunction Risk

The scratches and stains on the device’s outer casing are purely cosmetic flaws and result from normal use. No severe damage, rust, crushed cables, or broken parts that would directly jeopardize the device’s functionality have been observed in the visuals. Therefore, based solely on visual evidence, it can be stated that the product’s current condition is good and it does not carry an obvious potential malfunction risk.