Objective AI Report
Disclaimer: I am Medbidding AI. I am an unbiased AI robot. I have generated the following report automatically (without human intervention). The report was prepared by examining only the product images in the ad in detail. The report may contain errors. Medbidding and other parties disclaim any liability that may arise from this report or reliance on its contents. If you have any questions or notice an error in the report, please contact Medbidding engineers.
Report date: 21.08.2026
Report code: 1787317247
DeVilbiss 525KS Oxygen Concentrator Analysis Report
Device Description and Usage Areas
The product examined in the images is a home-type oxygen concentrator designed to support oxygen therapy for patients suffering from respiratory failure. The device takes in ambient air, filters out nitrogen gas, and provides high-purity medical oxygen to the patient. It is generally used in the home treatment of individuals with chest diseases, COPD (chronic obstructive pulmonary disease), and similar respiratory conditions.
Brand and Model Information
According to the text on the front body and the rear technical label, the brand of the product is DeVilbiss and the model is coded 525KS. The front panel also features the logo of the drive brand. The model code is clearly stated as REF 525KS on the rear label.
Authenticity and General Condition
Based on the examination of the original logos, serial number labels, and mold craftsmanship, it is understood that the device is original. The device is second-hand and its general condition is moderate; superficial marks and dust accumulation resulting from use are visible on the outer plastic casing.
Physical Deformation
There are slight friction marks, color fading, and dust residues on the dark-colored plastic outer casing and the wheeled bottom section of the device. There are no breaks or deep cracks on the display panel or control buttons.
Mechanical and Electronic Components
The flow adjustment valve, power switch, reset button, and oxygen outlet port located on the front are in place and mechanically functional. The device’s electronic warning lights and circuit board sections are positioned behind the rear ventilation grille.
Accessory and Part Inventory
The parts counted in the images and attached to the device are as follows: one transparent humidifier bottle and connection hose on the front, four movable wheels on the bottom, and a power cable, air filter cover, and filter element on the rear panel. The original box or external carrying bag of the device is not present in the images.
Quantity Information
There is a total of 1 main device and 1 humidifier bottle attached to it in the images.
Battery Status
There is no internal or external battery in the device; the product operates directly on mains electricity.
Label and Text Inventory
The following text is legible on the technical label on the rear panel and the warning areas on the front panel:
- DeVilbiss HEALTHCARE brand logo
- REF 525KS model code
- SN R 008506 KS serial number
- GTIN: 00 8 85304 00097 6 barcode number
- 220 V – 230 V ~, 50 Hz, 1.55 A electrical values
- Class II Type B electrical safety class code
- CE 0044 conformity mark
- Assembled in the USA place of manufacture
- 5 LPM O2 = 93% ± 3% oxygen flow and purity rate information on the front panel
The electrical values on the technical label indicate the device’s mains voltage compatibility, and the CE mark indicates that it was produced in accordance with European standards.
Display and Indicator Analysis
The device does not have a digital display. There are LED lights on the front panel indicating the operating status and a mechanical flowmeter showing the flow rate. The flowmeter features liter/minute graduations from 0 to 5.
Dimensions and Compatibility
There is no millimetric measurement regarding the physical dimensions or weight of the device in the images. However, it is observed to be in standard home-type oxygen concentrator dimensions and has an outlet port compatible with standard patient hoses.
Year of Manufacture
There is no direct year of manufacture printed on the labels. The outer casing design and label format of the device indicate that the product is a standard model produced in recent years; however, the exact year of manufacture cannot be fully determined from the visual data.
Documents
There are no invoices, warranty certificates, user manuals, or any similar printed documents in the images.
Usage Duration
The number 05570 is readable in the mechanical hour meter window located on the lower rear part of the device. This value indicates that the device has operated for a total of 5570 hours.
Existing Faults
There is no clear evidence of a fault such as a broken part, error message on the display, or a severed cable in the images.
Potential Fault Risk
Heavy dust accumulation is observed in the rear ventilation and filter area of the device; this may pose a risk of performance degradation by restricting airflow during long-term use. Aside from the superficial marks on the casing, its mechanical condition is good.









