Secondhand Yuwell 7F-5B 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: 11.11.2025

Yuwell Oxygen Concentrator Analysis Report

General Assessment

The product shown in the images is an oxygen concentrator intended for individual use. The device’s primary function is to separate nitrogen from ambient air, providing the user with high-concentration oxygen. The overall condition of the product appears to be very good, based on inspections conducted through the images. It has an almost new appearance, with no significant signs of wear or damage observed. The very low usage time displayed on the device’s screen, in particular, confirms this condition.

Brand and Model Identification

The Yuwell brand logo is clearly visible on the device’s front lower panel. Therefore, the product’s brand is definitively Yuwell. Since no specific model number (e.g., 8F-5A, 7F-5B, etc.) for the device is indicated in the images, no information about the model is included in this report.

Physical Condition and Deformation

The physical condition of the product is very good. The casing generally appears clean, free from dirt and dust. During the detailed examination, no scratches, dents, cracks, discoloration, or stains were detected on the device’s beige and white plastic casing. The transparent lid covering the humidifier reservoir is also intact and clear.

Electronic and Mechanical Components

Based on visual analyses, the mechanical and electronic components of the device appear to be problem-free. No findings indicating any functional defect have been observed.

• Digital Display: The digital display located on the device’s control panel is active, and the numbers are clearly legible. There are no pixel errors, blackouts, or abnormalities on the screen.
• Control Panel: The power button labeled “POWER”, and the “+” and “-” buttons used to adjust the timer are physically intact, and their symbols are not faded. The green power indicator light is on, which indicates that the device is receiving power.
• Flowmeter: The vertical flowmeter located on the right side, which indicates oxygen flow in liters per minute (L/min), is intact. The indicator tube is transparent and unbroken, and the ball inside is easily visible. The white rotary knob that adjusts the flow is in place and shows no damage.

Screen Analysis and Usage Time

The screen on the control panel provides important information about the device’s status. There are two main display areas on the screen: “COUNTS (hours)” and “TIMING (minutes)”. One of the most striking features of the device is that it has been used very little.

• Usage Hours: The counter under the “COUNTS (hours)” heading displays the value “00005”. This indicates that the device has operated for a total of only 5 hours, which is strong evidence that the product has been barely used.
• Timer Function: The “TIMING (minutes)” section and the adjacent 1-99 min inscription indicate that the device has a timer feature that allows it to shut off automatically after a specified period of operation.

Accessories and Connection Ports

Some accessories necessary for basic use with the device are visible in the images.

• Humidifier Reservoir: A transparent water humidifier reservoir with a black lid is installed in the compartment on the front panel. Air bubbles visible in the liquid inside the reservoir suggest that the device is operational or has been recently tested.
• Connection Hoses: Transparent hoses are connected to the humidifier reservoir’s outlet and to the “OXYGEN OUTLET” port on the device’s upper left corner. The ports and hoses appear clean and undamaged.
• Missing Accessories: The images do not show additional accessories such as the device’s box, user manual, spare filters, or remote control.

Potential Risk Assessment

Based on visual evidence, no significant deformation, rust, crushed cables, or critical damage that could pose a risk of malfunction has been observed on the device. The device’s physically near-new condition and the total usage time of only 5 hours visible on the screen indicate that the product has the potential for long-lasting and trouble-free use. It is assessed to be in a reliable condition regarding its overall state.