Secondhand Devilbiss Compact 525KS 5L/min Oxygen Concentrator

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: 16.10.2025

DeVilbiss 525KS Oxygen Concentrator Analysis Report

Overview and Device Identification

The device shown in the visuals is an oxygen concentrator. Oxygen concentrators are devices that take ambient air, separate the nitrogen, and provide high-concentration oxygen for medical use. This product is designed for patients requiring long-term oxygen therapy at home or in care facilities. The device in the visual consists of one main unit, one humidifier water bottle, and a power cable integrated into the device.

Brand and Model Information

The brand of the device is DeVilbiss, clearly legible on the control panel and labels. The model information has been identified as 525KS, also indicated on the control panel and labels. A warning label on the device states “Made in the USA”.

Physical Condition and Cosmetic Assessment

The overall condition of the device has been assessed as used. General dirt and dust are present on its exterior surface and wheels. Physical deformities are listed as follows:

• Scratches and scuff marks are present in places on the black plastic casing.
• Dense accumulations of dust and dirt have been observed in various parts of the device, especially at the bottom of the humidifier bottle.
• Wear and peeling are present on the edges of the labels on the upper part. Specifically, the label in the upper right corner is partially torn.
• The technical service label on the lower part also has slight peeling at its edge.

These cosmetic flaws do not include any major breaks, cracks, or dents that would hinder the device’s use.

Technical and Functional Assessment

The technical and mechanical condition of the device, as understood from the visuals, is as follows:

• Mechanical Components: The device’s wheels, carrying handle, control knobs, and flowmeter appear physically intact. The flowmeter’s transparent tube and the ball inside are in place.
• Electronic Components: The control panel features a power button, a reset button, and status indicator lights (Normal Oxygen, Low Oxygen, and Service Required). Since the device is not in operation, no comment can be made regarding the functionality of these lights. The power cable is connected to the device and appears intact from external observation.

Accessory and Equipment Analysis

The accessories attached to the device in the visuals are as follows:

• Humidifier Bottle: A transparent humidifier water bottle is located on the front of the device. There is some liquid inside the bottle, and the bottle generally appears dusty.
• Power Cable: A black power cable integrated into the device is present. No other accessories (oxygen cannula, mask, etc.) are visible in the visuals.

Label Information and Device History

Important information has been obtained from the labels on the device. Specifically, the label belonging to a technical service named “CALLIMedikal” provides significant data regarding the device’s usage history.

• Brand: DeVilbiss
• Model: 525KS
• REF Code: 525KS
• Serial Number (S/N): 475021K… (last part illegible)
• Device Usage Hours: Stated as 6624 hours on the service label.
• Device Delivery Date: 05.06.2024
• Next Maintenance Date: 05.11.2024

The “Next Maintenance Date” of 05.11.2024 on the service label is past as of the date this report was created. This situation indicates that the device’s periodic maintenance may be overdue.

Potential Risk Assessment

Based on visual inspections, the current condition of the device is generally good. No critical damage (break, crack, etc.) directly affecting its operation has been detected in the device’s casing or mechanical components. However, there are certain points the buyer should pay attention to:

• The general dust and dirt on the device suggest it has not been used for a long time or stored under appropriate conditions. A detailed external cleaning and inspection of its filters would be beneficial before use.
• The fact that the maintenance date specified on the service label is past indicates that the device may need to be inspected by a professional technical service. This is important for preserving the device’s performance and safety.

These notes do not point to a hypothetical malfunction, but are observations based solely on visual evidence, stemming from the device’s current condition and intended to inform the buyer.