Secondhand Devilbiss Compact 525KS 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 06.10.2025

Drive DeVilbiss 525 Oxygen Concentrator Analysis Report

General Assessment and Device Information

The device shown in the images is an oxygen concentrator manufactured by Drive and DeVilbiss. Detailed examinations of the device and its labels have identified its model as the DeVilbiss 5 Liter Oxygen Concentrator, with model code 525DS. The product is a medical device designed for home use, providing a continuous flow of oxygen to the user by concentrating oxygen from the air. The general condition of the product in the image is evaluated as “used,” bearing clear signs of use. The originality of the device is evident from the quality of its logos and labels.

The products subject to this report are:

• 1 unit Drive DeVilbiss 525DS oxygen concentrator
• 1 unit humidifier water bottle attached to the device

Physical and Cosmetic Condition

The outer casing of the device shows general dustiness and dirt. Particularly in the area of the upper carrying handle, significant scratches, scuff marks, and cosmetic imperfections likely resulting from a coating peeling off are noticeable. The black sponge air filter located on the rear panel of the device is excessively dusty and dirty. Small scratches and wear-and-tear from use are visible across the main body. The wheels at the bottom appear functional, but dirt accumulations are present around them.

Mechanical and Electronic Components

The flowmeter, power button (I/O), fuse reset button, and flow adjustment knob on the front panel of the device appear physically intact. Since the device was not observed in operating condition, no comment can be made regarding the functions of the LED lights on the front panel indicating “Normal Oxygen,” “Low Oxygen,” and “Service Required” statuses. The power cable input socket on the rear panel is in place, and no breakage or damage is observed. One of the most critical mechanical parts of the device, the rear air intake filter, is in a condition where it could obstruct airflow due to heavy dirt and requires urgent cleaning or replacement.

Accessories and Missing Parts

The images show one humidifier water bottle mounted on the oxygen outlet of the device. Apart from this accessory, essential accessories required for the device’s operation, such as the power cord and a nasal cannula or oxygen mask that enable the patient to receive oxygen, are not present. Consequently, there are deficiencies in the device’s basic accessories.

Technical Details and Label Information

The following technical information can be read from the main product label located on the back of the device:

• Brand: DeVilbiss
• Model: 525DS – 5-Litre O₂ Concentrator
• Reference (REF) Code: 525DS-KE
• Serial Number (SN): 0175510
• GTIN Code: 00 8 85304 00567 2

Labels on the front panel state that the device provides 93% (±3%) oxygen concentration at a flow rate of 5 liters/minute. The phrase “Made in the USA” is also present. Additionally, there is an “Rx Only” warning indicating that the device should be used by prescription.

Potential Risks and Maintenance Requirements

The most prominent potential risk in the image is the excessively dirty air intake filter on the rear panel. This condition can lead to the device not getting sufficient air, the motor being strained, overheating, and a decrease in oxygen production efficiency. This filter urgently needs cleaning or replacement. The extensive cosmetic wear and tear throughout the device may indicate a lack of careful use in the past, and therefore, the possibility of unexpected mechanical or electronic issues arising when it is operated should be considered. However, the current images do not provide definitive evidence of malfunction (e.g., broken parts, error lights).