Secondhand Devilbiss Compact 525KS 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 19.09.2025

DeVilbiss 525 Oxygen Concentrator Analysis Report

General Assessment and Product Description

The device shown in the visuals is a DeVilbiss brand 525 model oxygen concentrator. The labels on it clearly read “DEVILBISS OXYGEN CONCENTRATOR” and “525 Oxygen Concentrator”. The overall design of the device, logo quality, and label details indicate that the product is original. This device is a medical product designed to provide concentrated oxygen to users by separating nitrogen from ambient air, and it is used for oxygen therapy in home or clinical settings. According to the information on the front panel, the device can provide oxygen output at 93% (±3) purity with a flow rate of 5 liters per minute (LPM).

Quantity and Accessory Information

According to the visual inspection, the following items are present in total:

• 1 unit DeVilbiss 525 Oxygen Concentrator
• 1 unit Humidifier Water Bottle attached to the device
• 1 unit Power Cable integrated into the device

No other additional accessories such as an oxygen mask, nasal cannula, or user manual were detected in the visuals.

Physical Condition and State

The device is generally in a used condition. There are various scratches, scuff marks, and sticker residues on the casing. Dust and dirt accumulations are observed, particularly at various points of the device and in the compartment where the humidifier bottle is located. The device has four wheels, and no breaks or cracks that would impede the wheels’ mobility are visible. The carrying handle on the top of the device, the control buttons on the front panel, and the flow meter are physically intact.

Technical Information and Label Analysis

Important technical and usage information has been obtained from the labels on the device. The label on the front panel shows that the device is Model 525KS / 525DS and bears the Made in the USA stamp. The following information was obtained from the “Callimed” service label affixed later to the device:

• Device Name: DeVilbiss
• Device Delivery Date: 05.06.2024
• Next Maintenance Date: 05.11.2024
• Device Usage Hours: 6624 hours

The fact that the device has operated for a total of 6624 hours indicates an intensive usage history.

Current and Potential Status

No broken parts, dents, or obvious signs of malfunction that would directly impede the device’s operation were detected in the visuals. The on/off button, flow adjustment knob, and reset button on the control panel are physically in place. According to the service label on the device, the next maintenance date is stated as November 2024; this suggests that the device is a product requiring regular maintenance and that performing maintenance on the specified date would be beneficial. While the cosmetic flaws on the device’s outer casing and the general dusty condition serve as information for a potential buyer, the device is evaluated to be in a functional state based on its current condition.