Secondhand Plusmed PM-KN03T 3kg Portable Oxygen Concentrator

Objective AI Report

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Report date: 20.11.2025

Plusmed PM-KN031 Portable Oxygen Concentrator Analysis Report

Device Identification, Brand and Model Analysis

The device shown in the visuals is a portable oxygen concentrator used for medical purposes. As a result of detailed examinations of the device’s front and top panels, the brand was clearly identified as Plusmed, and the model code as PM-KN031. The brand information is displayed in orange letters on the upper part of the device, while the model code is inscribed in grey tones just above the control panel screen.

Product Components and Quantity Information

The analyzed visuals show a total of 5 basic parts as a set. These parts are:

• 1 Plusmed PM-KN031 Main Device
• 1 Black Carrying Bag (Custom-designed for the device)
• 1 AC Power Adapter (Black power block and cable for standard outlet)
• 1 DC Car Charging Adapter (Cable with car cigarette lighter input)
• 1 External Battery Charging Station and Battery Unit (White block located to the left of the device)

Areas of Use

This device is a portable medical product designed for patients requiring respiratory support to receive oxygen therapy while on the go. It can be used at home with an AC adapter, in a car with a DC adapter, and outdoors without being connected to any power source, thanks to its internal/external battery support.

Physical and Cosmetic Condition

The product’s outer casing is made of white hard plastic and generally exhibits a robust structure. No cracks, breaks, or severe deformation were visually detected on the casing. However, the most noticeable cosmetic element is the grey control panel sticker located on the upper part of the device. The adhesive film or membrane coating on the panel surface is seen to be bubbling, forming air pockets, and rippling in places. This indicates that the device has been used before or that the adhesive material has deformed over time, but it does not obstruct the readability of the buttons.

Mechanical and Electronic Component Analysis

Panel and Controls: The control panel located on the upper part of the device features an LCD screen and tactile membrane buttons. Among the buttons are minus (-), plus (+), an alarm mute/notification icon, and a power (on/off) button highlighted with a yellow ring. No physical wear or fading is visible on the buttons; the symbols are clearly readable. The screen is off in the visual.

Inputs and Outputs: A metal oxygen output port (cannula connection tip) is present on the top surface of the device, and the port appears clean. The front surface of the device features a gridded area likely housing the filter inlet, and cooling vents on the sides. No signs of rust or corrosion were detected at the connection points.

Accessories and Hardware Examination

Carrying Bag: The custom-made black fabric carrying bag is fully compatible with the device. The top part of the bag has a transparent window allowing visibility of the device’s control panel and screen. Additionally, a metal grommet is placed for the oxygen hose outlet. The zippers, stitching, and metal rings of the bag appear to be sturdy visually.

Power Units: The accompanying black power adapter (AC) and in-car cigarette lighter charging adapter (DC) cables appear orderly. No crushing, peeling, or breakage, which would pose a risk, was observed at the cable ends.

Battery Unit: The vertical white unit located to the left in the visuals is likely a “dock” station used for charging a spare battery or for independent charging separate from the device. Its plastic components are clean and in the same color tone as the device.

General Assessment and Failure Risk Analysis

The device is a second-hand product in “used” condition. Its general cleanliness is good. No mechanical breaks or electronic burn marks were found in the visuals. The only point requiring attention is the cosmetic bubbling of the sticker on the control panel; although it cannot be determined from the visual whether this affects the sensitivity of the buttons, it usually remains an aesthetic flaw in such devices. The full complement of the product set, including its adapters and carrying bag, suggests that it has been used carefully.