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

Objective AI Report

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Report date: 23.12.2025

Yuwell 7F-5B Oxygen Concentrator Analysis Report

Device Identification

The product in the image is a medical device that separates oxygen from ambient air and supplies high-concentration oxygen to the patient. Based on its structure, control panel, flow meter, and humidification unit details, the product has been identified as an Oxygen Concentrator.

Brand and Model

The logo and model indications on the front body of the product have been clearly analyzed. Accordingly, the device information is as follows:

• Brand: Yuwell
• Model: 7F-5B

The brand name “yuwell” is clearly and legibly written in the center of the device’s front surface, and the model number “7F-5B” is written at the bottom.

Originality

The molding quality of the product’s outer casing, the font of the logo, the placement of parts (flow meter, panel buttons), and overall workmanship details indicate that the product is an original Yuwell production. No visual findings suggesting it is an aftermarket or counterfeit product have been observed.

Areas of Use

This device is used to provide oxygen support to patients suffering from respiratory failure, COPD, or other lung conditions, both at home and in clinical settings. It takes in ambient air, filters out other gases such as nitrogen, and delivers concentrated oxygen to the patient.

General Condition and Physical State

Based on the visual inspection, the general cosmetic condition of the device is as follows:

• Casing Condition: The device’s outer casing is made of white hard plastic. It generally appears clean and robust. No significant cracks, deep scratches, or fragmentation were detected on the surfaces visible in the photograph.
• Cleanliness: While the device generally appears clean, standard surface dullness that may result from long-term storage or use can be considered normal. No prominent dirt or stains are noticeable.

Technical Parts and Component Analysis

The analysis of the mechanical and functional parts identified in the image is as follows:

• Flow Meter: On the right side of the device, there is a vertically positioned flow meter with a ball mechanism inside a transparent tube. The scale is in “L/min” and is graded between 0 and 5 Liters/minute. This indicates that the device can provide a maximum oxygen flow of 5 liters per minute. A flow adjustment knob is present at the top.
• Humidification Unit: In the middle part of the device, there is a humidification bottle (jar) protected behind a transparent cover. The bottle is in place, and the cover mechanism appears robust.
• Oxygen Outlet: On the left side of the device, below the “OXYGEN OUTLET” label, there is a metallic-tipped oxygen output port. No physical damage is observed around this port.
• Control Panel: The top part of the device features a digital LCD screen, timer (+/-) buttons, warning LEDs, and the main “POWER” switch. The readability of the texts on the panel is complete.

Quantity Information

The image shows 1 unit of a complete oxygen concentrator device.

Accessories

As an internal accessory on the device, only the humidification bottle, located inside the protective cover on the front panel, is visible. External accessories such as a nasal cannula, mask, or extension tubing to be attached to the patient are not present in the image.

Screen and Electronic Components

An LCD information screen is present on the top panel of the device. Since the device is in the off position (or the screen is blank) in the photograph, the operating hours or warning codes on the screen cannot be read. The Power switch appears to be in the “0” (Off) or neutral position.

Potential Malfunction Risk

As a result of the visual analysis, no rust, severe deformation, or missing parts were observed on the device’s outer casing. The device maintains its integrity. However, as it is an electronic medical device, the condition of its internal filters (zeolite) or compressor performance cannot be determined solely from the visual inspection. Based on its physical appearance, it can be classified as “Good Condition,” and no significant visual risk has been identified.