Secondhand Philips Respironics Dreamstation TRX400H15 CPAP Device with Humidifier

Objective AI Report

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Report date: 25.02.2026

Philips Respironics DreamStation Respiratory Device Visual Analysis Report

Device Identification

The product displayed is a medical device that provides positive airway pressure (PAP), used in respiratory therapy and sleep apnea treatment. The device has a modular structure consisting of a main motor unit and an integrated heated humidifier chamber. The system also includes air tubing and a nasal mask as accessories.

Brand and Model

Upon examining the logos on the product casing and its unique case design, the following observations were made:

• Brand: PHILIPS RESPIRONICS
• Model: The case form factor, button placement, and humidifier integration structure confirm that the product belongs to the DreamStation series (1st Generation). The specific sub-version of the model (Auto CPAP, CPAP Pro, or BiPAP) is not specified as it cannot be read from the writings on the top panel.

Originality

The print quality of the brand logo on the casing, the plastic injection molding craftsmanship of the device, the fit of the humidifier chamber lid, and the characteristic design of the tubing input socket indicate that the product is an original Philips Respironics production.

Areas of Use

This device is suitable for home care use in the treatment of patients diagnosed with Obstructive Sleep Apnea (OSA). It provides continuous positive airway pressure to keep the airways open.

Quantity Information

A single system set is shown in the visuals. Components:

• 1 Main Device Body (Motor Unit)
• 1 Water Chamber (Humidifier Tank)
• 1 Air Tubing
• 1 Mask (Nasal Pillow type)

Overall Condition

The device is in used condition (second-hand). Cosmetic signs of wear are present. It is not in “new” or “refurbished” condition, exhibiting the appearance of being put on a shelf after active use.

Physical Deformation

• Casing: Embedded dirt and stains are present on the white polycarbonate body. No deep scratches or cracks were detected, but there is dullness on the surface due to use.
• Keypad: Significant dust accumulation and dirt residues are observed around the panel containing the power and ramp buttons.
• Mask Textile: In the fabric part of the mask’s headgear straps, there is noticeable discoloration (yellowing) and texture wear due to sweat and use.

Mechanical Components

• Humidifier Lid: The hinge mechanism of the transparent polycarbonate chamber lid sits properly in the closed position. The locking latch is aligned.
• Tubing Inlet: The swivel air outlet port on the main unit appears intact, and no looseness is observed in the tubing connection.

Electronic Components

Whether the device is in working condition cannot be determined from the visual. The screen is off. There are no visible burn marks or deformed electronic input ports.

Accessories and Detailed Examination

• Tubing: A white, spiral corrugated tubing is present. The rubber/silicone material on the cuff part where the tubing enters the device is intact. The marking “15” (15mm), indicating the tubing diameter, is legible on the cuff.
• Mask: A nasal pillow type mask is attached to the device. The silicone frame of the mask has yellowed. This part is a consumable that needs to be replaced for hygienic reasons.
• Sockets and Inlets: There is no breakage in the upper air outlet port. The locking tabs of the tubing are fully seated in the slot.

Battery Status

This device series typically operates with mains electricity (AC/DC adapter). It does not have an internal battery. An external battery module is not present in the visual.

Label Information

The only written information on the device’s top panel is as follows:

• Brand Logo: PHILIPS RESPIRONICS
• Symbols: The Power icon and Ramp (triangle) icon are located on the buttons.
• Cuff Inscription: A part of the “RONICS” inscription and the “15” diameter value are legible at the tubing inlet.

Screen Analysis

The device is in the off position. Therefore, no pixel errors, menu warnings, or fault codes on the screen could be displayed.

Size and Compatibility

The device is designed for adult use. The mask and 15mm tubing in the visual are suitable for standard adult or adolescent treatment. The mask size (S/M/L) cannot be read from the visual.

Documents

No warranty certificate, invoice, user manual, or service form is present in the visual.

Potential Malfunction Risk

No significant physical deformation (casing crack, liquid contact trace) was observed. However, the general cleanliness of the device is inadequate. The density of dust and particles on the exterior surface indicates that the device’s filter inlets may also be full; this is a factor that could affect motor performance. Furthermore, the mask headgear straps appear to have reached the end of their hygienic life, and these parts require replacement.