Secondhand Löwenstein Prisma 30ST BPAP ST Device with Humidifier

Objective AI Report

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Report date: 20.11.2025

Löwenstein Medical Respiratory Device and PrismaAQUA Humidifier Analysis Report

Device Identification, Brand and Model

The products shown in the visuals consist of a main unit used for medical respiratory therapy (CPAP/BPAP), a humidifier module that can be integrated into this unit, and its accessories. The detailed visual inspection revealed the following findings:

• Main Device Brand: The “LÖWENSTEIN medical” logo is clearly visible on the front face of the device. Additionally, a “WEINMANN” label, believed to have been affixed later, is present on the upper part of the device. This situation may indicate a brand transition process or service history, but the main manufacturer’s logo is Löwenstein Medical.
• Humidifier Model: The inscription prismaAQUA is clearly visible on the external module in the second visual and on its original box. The descriptions on the box include “Atemluftbefeuchter WM100TH” (Respiratory air humidifier).
• Product Type: Respiratory support device (for sleep apnea treatment, etc.) and heated humidifier unit.

Label Information and Technical Data

The label information on the PrismaAQUA box in the second visual is readable in high resolution and is as follows. The serial number label of the main device in the first visual is not visible.

• REF (Reference) Code: WM29680 (Read from the box).
• SN (Serial Number): 62606 (Read from the box).
• Model Description: Respiratory air humidifier WM100TH (Humidifier compatible with WM100 series).
• Manufacturer: Löwenstein Medical Technology GmbH + Co. KG – Hamburg, Germany.
• Barcode Information: (01)04050384252263(21)62606(240)WM29680.
• Certification: CE0197 inscription is present.

General Condition, Cosmetic and Physical Deformation

The cosmetic condition of the products should be evaluated in two separate parts:

• Main Device (Visual 1): The black main unit is seen inside a carrying case. On the side panel of the device where the “Löwenstein medical” logo is located (on the humidifier connection point cover), intense tape marks, adhesive residues, or transparent protective tape deformations are visible. The cosmetic condition in this area bears traces of wear due to use or careless taping. Slight dust is present on the device surface. While it cannot be definitively determined from the visual whether there is a protective film on the screen, the screen appears bright.
• Humidifier Unit (Visual 2): The PrismaAQUA humidifier unit appears to be in a very clean, bright, and new condition. Its original box is next to it. The orange protective cardboard/device used to prevent damage during transport is still attached inside the device. This suggests that the product may never have been used or has been stored in its box.

Mechanical and Electronic Component Assessment

Mechanical findings based on external examination from the visuals are as follows:

• Control Buttons: A silver-framed rotary/push button (jog dial) is located on the front face of the main device. The button appears physically sound.
• Air Outlet: The black air hose outlet port on the front of the device appears intact; no breaks or cracks were observed.
• Humidifier Connection: The side cover of the main unit is the area reserved for humidifier connection. Interventions made with tape are visible in this area in the visual, and the condition of the mechanical locking mechanism should be checked closely.
• Electronic Status: The device screen is in the off (black) position. There is no visual data to indicate whether it is operational or if there are issues such as dead pixels on the screen.

Accessories and Hardware

The total list of parts and accessories identified in the visuals is as follows:

• 1 Unit Löwenstein Medical Main Device (Model series likely Prisma series).
• 1 Unit prismaAQUA Humidifier Unit.
• 1 Unit Original prismaAQUA Cardboard Box.
• 1 Unit Power Adapter (Black, brick-type adapter).
• 1 Unit Power Cable (Connected to the adapter, European-type plug end is visible).
• 1 Unit Original Black Carrying Case (Zippered, with protected compartments).
• A special mesh pocket for the power adapter is located inside the bag.

Originality and Manufacturing Information

The logos on the product, material quality, “reddot design award” label, and detailed manufacturer information on the labels (German origin) indicate that the product is an original Löwenstein Medical (formerly Weinmann) product. The labels and print quality on the humidifier box also support its authenticity. Although the production year could not be directly read from the information on the box, the timestamp on the photograph indicates the year 2022, which is when the product was photographed, not its manufacturing date.

Areas of Use

This system enables patients to receive Positive Airway Pressure (PAP) therapy to keep their airways open during sleep. The prismaAQUA unit, in turn, heats and humidifies the air delivered during this treatment, enhancing patient comfort and preventing dryness.

Potential Risk of Malfunction

Although the general structure of the products appears sound, the tape and adhesive marks on the left side of the main unit (in the logo area) suggest the possibility of a previous issue related to the closing of the cover or the proper seating of the humidifier module. If these tape marks were made to hold a broken part of the cover mechanism, there might be a risk of electrical contact issues with the humidifier. Aside from this, the humidifier unit being in brand new condition and the cables appearing solid instills confidence.