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: 23.09.2025

DeVilbiss 5 Liter Oxygen Concentrator Analysis Report

General Assessment and Product Description

The product shown in the images is an oxygen concentrator device that separates oxygen from ambient air and provides concentrated oxygen to the user. The device is designed for respiratory support in home environments or healthcare facilities. Based on visual analyses, the product is understood to be an original DeVilbiss production, evident from the quality of the logos and labels. In total, there is one oxygen concentrator and one humidifier water bottle attached to the device.

Brand and Model Information

The brand and model information on the device are clearly legible. According to this information, the device’s brand is DeVilbiss, and its model is identified as 5 Liter Oxygen Concentrator. A code indicating the “525DD” model series is present on the front panel.

Physical Condition and Cosmetic Analysis

The product is generally in a clean and well-maintained condition, suggesting it may have been used sparingly. No significant physical deformations such as large cracks, dents, or discoloration have been observed on its black casing. However, some dust accumulation is present around the filter housing at the back of the device and in some ventilation channels. The wheels located underneath the device are a feature that facilitates transport and appear sturdy.

Mechanical and Electronic Component Examination

Mechanical components are visually in good condition. The flowmeter (flow gauge) that adjusts oxygen flow is intact, and its measurement lines are clear. The on/off and circuit breaker buttons appear physically sound. On the front of the device, there is an indented section where the humidifier water bottle is placed and an oxygen output port. At the back, the power cable input and ventilation fan are visible. Electronically, a small digital display, presumed to show the device’s operating hours, is located on the front panel, but since the device is not powered on, the screen is off, and no data can be read. Similarly, the status-indicating LED lights are also off.

Accessories and Equipment

The following accessories have been identified visually with the device:

• Humidifier Water Bottle: A transparent humidifier bottle with a blue cap is attached to the oxygen output. This bottle ensures that the oxygen is humidified before reaching the patient and is visually clean.
• Power Cable: A black power cable, integrated into the back of the device and ready to be plugged in, is present.

No additional accessories such as an oxygen mask or nasal cannula are present in the images.

Label and Technical Information

Various technical information and codes are found on the label on the rear surface of the device. These details are:

• Serial Number (SN): B234100077KS
• Oxygen Output: 0.5 – 5 LPM (Liters/Minute) 93% ± 3%
• Electrical Safety Class: Class II, Type B
• Protection Class: IP21
• Place of Manufacture: Assembled in USA

On the front panel, a label displays “525DD-331 Rev B”, and in the section with warning signs, “525DD-337 Rev A” codes are present. These codes provide information about the device’s model series and revision. The device also features a CE certificate and various safety standard symbols.

Potential Risk and Maintenance Assessment

Based on visual inspections, no critical issues such as rust, crushed cables, or broken parts that would pose an immediate failure risk have been observed on the device. The overall condition of the product is quite good. However, the slight dust accumulation visible in the rear ventilation and filter section indicates that cleaning or replacing the filters before using the device would be beneficial. This is a standard maintenance procedure that will enhance the device’s performance and longevity and should not be considered a malfunction.