Secondhand Medwelt 7F-5B 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 11.11.2025

Medwelt 7F-5B Oxygen Concentrator Analysis Report

Overview and Product Description

The device shown in the visuals is an oxygen concentrator used for medical purposes. Such devices take ambient air, separate nitrogen from it, produce concentrated oxygen, and provide it to users who need respiratory support. The brand of the product in the visual is clearly identified as Medwelt, and the model as 7F-5B. The general appearance of the device, its labels, and workmanship quality give the impression that it is an original product.

Usage Duration and General Condition

On the digital display on the device’s front panel, the value 00338 is read under the heading “COUNTS (hours)”. This indicates that the device has been used for a total of 338 hours. This usage duration is quite low for a medical device and indicates that the product has been lightly used. The general condition of the device is very good; no discoloration, yellowing, or significant stains are observed on its white plastic casing. The product has a clean and well-maintained appearance.

Physical and Mechanical Assessment

Upon detailed examination of the product’s physical condition, no deformation was detected.

• Casing: The device’s casing has no scratches, dents, cracks, or broken parts.
• Mechanical Components: The “FLOW METER” rotary knob and flow indicator on the front panel that adjust oxygen flow are physically intact. The transparent cover protecting the humidifier reservoir and the oxygen outlet port (“OXYGEN OUTLET”) appear to be in good working order.
• Electronic Components: The power button and status indicator lights are in place. The screen is operational and displays numbers clearly. The power cable connection at the rear and the cable itself are solid.

Accessories and Package Contents

The parts included with the device in the visuals are listed below:

• Transparent humidifier reservoir attached to the device.
• Black power cable with a European-type plug, connected to the rear of the device.
• A transparent bag containing a document with the phrase “GARANTİ BELGESİ” (WARRANTY CERTIFICATE) visible and additional documents. The content of the documents and the validity of the warranty cannot be read clearly.
• The cardboard box in which the product rests indicates that its original packaging may be present.

Accessories necessary for use, such as an oxygen mask or nasal cannula, are not present in the visuals.

Label Information and Technical Details

Important technical information is located on the product label on the rear surface of the device. According to this information, the device exhibits the characteristics of a standard oxygen concentrator for home use.

• Brand: Medwelt
• Model: 7F-5B
• Serial Number (S/N): P11HH00201147
• Power Supply: ~220V±22V, 50Hz±1Hz
• Oxygen Flow: 1-5 L/min.

The label also contains information that the manufacturer of the device is “Jiangsu Yuyue Medical Equipment & Supply Co., Ltd.” and a CE conformity mark.

Potential Failure Risk and Conclusion

Based on visual evidence, no existing malfunction or damage has been detected in the device. Considering the device’s low usage hours (338 hours) and overall clean condition, any potential risk of malfunction is assessed as low. There are no signs of crushing in the power cable, cracks in the casing, or problems in the electronic components. The product generally presents a profile of being ready for use and in good condition.