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

Product Overview

The product shown in the images is a Medwelt 7F-5B model oxygen concentrator used to provide respiratory support. On the front of the device, the Medwelt brand logo, written in white letters on a red background, and the 7F-5B model code immediately below it are clearly visible. Upon examining the device’s overall craftsmanship, logo print quality, and panel layout, it is understood to be an original product. Oxygen concentrators are medical devices that take in ambient air, separate nitrogen from it, and produce high-concentration oxygen for patient use.

Physical Condition and Deformation Analysis

The device is covered with a transparent packaging film to protect it from external factors. This indicates that the product has either never been used or has been used very little and carefully stored. As far as can be understood from the images, there are no scratches, cracks, dents, stains, or color fading on the device’s white plastic casing. The device is physically in new and flawless condition.

Electronic and Mechanical Component Inspection

The mechanical and electronic components of the device have been carefully examined, and no issues have been found.

• Control Panel: The control panel located on the front top part of the device appears clean and functional. The panel includes a digital display, a power (POWER) button, timing (1-99min) and adjustment (+/-) buttons, and status LEDs. All texts and symbols are legible.
• Digital Display: The display is operational and shows the numbers clearly. There are two main display sections: “COUNTS (hours)” and “TIMING (minutes)”.
• Flow Meter: The flow meter located on the right side of the device, which shows the oxygen flow rate per minute in liters (L/min), is intact and clean. The meter offers adjustment between 0 and 5 L/min.
• Humidifier Reservoir: A water humidifier reservoir is present within the transparent-covered compartment and is in good physical condition. Hose connections are in place.
• Oxygen Outlet: An oxygen outlet port, labeled “OXYGEN OUTLET”, is located on the upper left side of the device.

Usage Information and Technical Details

The data on the device’s screen provides important information about its usage status. The value “00019” seen under the “COUNTS (hours)” heading indicates that the device has only been used for a total of 19 hours. This is a very low usage time for an oxygen concentrator and confirms that the device is nearly new. The “TIMING (minutes)” section is used to set the session duration, and no adjusted value is shown in the image.

Accessories and Additional Parts

The standard accessories belonging to the device are visible in the images.

• One humidifier water container is attached to the device.
• A short connecting hose from the humidifier container to the flow meter is present.
• The device’s own power cable can be seen at the bottom.

Apart from these accessories, additional parts such as an oxygen cannula or mask are not included in the images.

Observed Label Information

The labels and texts in the images have been examined. No detailed technical label (containing serial number, manufacturing year, etc.) other than brand and model information is visible on the device.

• Brand: Medwelt
• Model: 7F-5B

Conclusion and Evaluation

This analysis reveals that the Medwelt 7F-5B oxygen concentrator is a nearly unused, new-condition device. Its protective packaging, a total operating time of only 19 hours, and the absence of any physical deformation are proof of the device being in excellent condition. Both its mechanical and electronic components are visually flawless. No negative conditions (such as rust, crushed cables, wear and tear, etc.) indicating a known or potential fault risk for the device have been observed in the images.