Secondhand Löwenstein Prisma 25ST BPAP ST Device with Humidifier

Objective AI Report

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Report date: 27.01.2026

Löwenstein Medical Prisma25ST BiLevel Device Analysis Report

Device Identification

The main product examined in the visuals is an electronic device used for medical purposes, providing respiratory support. This set consists of a main control unit, a humidifier module that can be integrated into this unit, and a protective carrying case for the device. The product has a modular structure; the main unit and the humidifier part can be separated from each other.

Brand and Model

As a result of detailed visual inspection and analysis of the typographic elements on the product, the brand and model of the device have been definitively identified. The logo of the LÖWENSTEIN medical brand is located on the left panel of the device’s main unit and on the carrying case. The most prominent model information of the product is clearly written on the metal ring around the start/stop (on/off) button. According to the information written here, the device’s model is Prisma25ST. Additionally, the inscription prismaAQUA is visible on the humidifier unit attached to the side of the system. Based on this data, the product is a BiLevel device belonging to Löwenstein Medical’s Prisma series.

Originality

Considering the print quality of the logo on the product, the smooth craftsmanship at the casing’s joining points, the model engraving around the button, and the branding on the original carrying case, the product is evaluated to be 100% original Löwenstein Medical production. No traces of aftermarket or counterfeit production (such as incorrect font, low-quality plastic molding, etc.) have been observed.

Areas of Use

The Prisma25ST model is primarily a BiLevel (Bilevel Positive Airway Pressure) device used in the treatment of sleep apnea and respiratory insufficiency. Thanks to its “ST” (Spontaneous/Timed) mode, the device can support the patient’s spontaneous breathing as well as provide timed respiratory support. It is typically used in post-hospital home care settings for the treatment of conditions such as COPD or Obstructive Sleep Apnea. The humidifier (prismaAQUA) in the visual is integrated into the system to prevent the patient’s throat from drying out while pressurized air is delivered.

Quantity Information

The parts of the set included in the visuals are listed below:

• 1 Main Device (Löwenstein Medical Prisma25ST)
• 1 Humidifier Heater Base Unit (prismaAQUA)
• 1 Transparent Water Chamber (for Humidifier)
• 1 Power Adapter (Black)
• 1 Power Connection Cable
• 1 Original Carrying Case

General Condition

The device and its accessories are visually in a very clean and well-preserved condition. Even if it is in a second-hand status, the cosmetic condition of the device can be described as “very good” or “like new”. The shine of the plastic surfaces and the texture of the matte parts indicate that the device has been meticulously used or used sparingly.

Physical Deformation

No noticeable deep scratches, dents, cracks, or breaks have been detected on the outer casing of the device. There is no discoloration or significant wear on the black matte surfaces. The screen surface is clean, and no signs of impact are visible. No yellowing or dullness due to limescale has been observed on the transparent plastic part of the humidifier water chamber, which indicates light use or good cleaning.

Mechanical Components

The latch and claw mechanisms that allow the water chamber to connect to the main unit appear sturdy. The visuals show the humidifier both attached and detached, indicating that the modular connection mechanism functions smoothly. The area around and the physical integrity of the rotary push-button on the front panel of the device are flawless.

Electronic Components

The device features a large LCD screen on its front, known to be touch-sensitive. In the visuals, the device is in the off position (screen black), so no comments can be made about the pixel status of the screen. However, the panel is physically intact. The air outlet socket on the side of the device appears clean.

Accessories

The device comes with its original power adapter and power cable. No physical damage is visible on the adapter. The carrying case is an original accessory of the brand, and its stitching and zipper structure appear robust. However, the “Hose” and “Patient Mask” necessary for the user to operate the device are not included in the visuals. These parts are usually acquired personally for hygienic reasons and may therefore not be included in the sales package.

Battery Status

Löwenstein Prisma series devices generally do not feature an internal battery as standard and operate with mains electricity. No external battery pack connected to the device is present in the visuals. The adapter must be plugged into an outlet for it to operate.

Label Information

The silver label containing technical information (Serial number, REF code, production date, etc.) cannot be seen in the product photos as the bottom or rear panel of the device is not turned. The information readable in the visual is as follows:

• Brand: LÖWENSTEIN medical
• Model: prisma25ST
• Humidifier Model: prismaAQUA

Usage Time

The total operating hours (Running Hours) of the device can be seen when the screen is turned on via the technical menu. Since the device is off in the photos, there is no visual data regarding how long the device has been used.

Existing Faults

There are no signs in the visuals (broken parts, burn marks, deformed sockets, etc.) that would suggest the device is faulty. All parts are intact and in their proper places.

Potential Fault Risk

The overall cosmetic condition of the product is extremely good. No crushing or stripping is observed on its cables. As the device has been used cleanly, it does not present any visible potential fault risks. Only the seals of the humidifier water chamber might wear out over time, but no deformation in these seals can be discerned in the visual. It is in a reassuring condition for the buyer.