Secondhand Resmed VPAP III ST BPAP ST Device with Humidifier

Objective AI Report

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Report date: 08.12.2025

ResMed VPAP III ST Respiratory Device Analysis Report

Device Identification and Brand/Model Analysis

The device shown in the visuals is a medical respiratory support and sleep therapy device. A detailed visual inspection revealed that the brand and model are clearly written on the front panel and top surface of the device:

• Brand: RESMED (Engraved in navy blue letters on the top white surface of the device).
• Model: VPAP III ST (Clearly legible on the upper part of the front control panel, against a purple background).
• Panel Inscriptions: The front features the phrase “Enhanced” and inscriptions next to the control buttons indicating “Start/Stop” and “Mask-fit” functions.

Areas of Use and Function

The ResMed VPAP III ST is a BiLevel (Two-Level) positive airway pressure device. It is generally used for the following purposes:

• Treatment of sleep apnea (Obstructive or Central).
• Home mechanical ventilation support in respiratory failure conditions such as COPD.
• To support spontaneous breathing (ST – Spontaneous/Timed mode indicates that the device can also provide respiratory support in a timed manner).

Quantity and Accessory Information

The visuals show only 1 unit of the main device and its integrated humidifier chamber. The components present in the images are as follows:

• 1 Unit ResMed VPAP III ST Main Unit.
• 1 Unit Integrated Humidifier Water Tank (Transparent plastic chamber at the front-bottom of the device).

General Condition and Cosmetic Inspection

Upon examination of the device’s general condition, it appears to be a heavily used, “second-hand” product. Details regarding its physical condition are as follows:

• Casing Cleanliness: The device’s white plastic outer casing shows distinct layers of dirt, stains, and discoloration. Dust accumulation is observed, particularly around the buttons and plastic joints. It requires thorough external cleaning.
• Wear and Scratches: Superficial scratches and black stains (scuff marks) due to friction are present on the right side surface and top part of the device.
• Physical Deformation: No significant signs of cracks or breaks in the casing are visible in the image; the device maintains its integrity.

Technical and Mechanical Component Analysis

Based on visual evidence, the mechanical and control interface analysis is as follows:

• Screen: The device features an LCD information screen. Since the device is off (not receiving power), whether the screen is functional cannot be analyzed from the visual. No visible cracks were detected on the screen.
• Control Buttons: The front panel features up/down arrow buttons, right/left selection buttons, and a large main button in the center. The silicone coatings on the buttons appear yellowed over time but are in place.
• Humidifier Control: On the blue panel at the bottom, there is a manual adjustment dial (potentiometer knob) numbered from 0 to 6, featuring water droplet icons. This indicates that the device has a heated humidifier system.

Missing Parts and Connection Status

It has been determined that vital accessories necessary for the device’s use are not present in the visuals:

• Power Cable: The power cable or adapter that supplies electricity to the device is not present in the visuals.
• Air Tubing: The air tubing (circuit) from the device to the mask is missing. Only the outlet port at the end of the transparent chamber is visible.
• Mask: The patient face mask is not present in the visual.

Potential Malfunction Risk and Evaluation

The “VPAP III” series of the device is one of the manufacturer’s older generation models. Based on the condition in the visuals, potential risks are as follows:

• Hygiene Risk: The inside of the humidifier water chamber and the device’s air outlet ports are critically important for respiratory health. The external dirtiness visible in the visuals poses a risk that the device’s internal air pathways or filters may also be dirty. Professional disinfection and filter replacement are mandatory before use.
• Electronic Lifespan: Given that the product is an older model and its external wear, the functional guarantee of internal electronic components or the humidifier heating plate cannot be provided based on the visual.

Originality Status

The “RESMED” logos on the product, panel typography, material quality, and design language (form specific to the VPAP III series) prove that the product is 100% original ResMed manufacturing.