Philips Water Chamber for DreamStation

The Philips DreamStation water chamber is the tank that sits inside the DreamStation heated humidifier, under the therapy device. It holds 325 mL at the level Philips recommends, which covers a normal night, and lifts straight out once the humidifier lid is released with its lever.

Philips builds one tank for the whole original DreamStation range, so it serves both the CPAP and the BiPAP machines without any variant to choose. It is top shelf dishwasher safe, and it takes room temperature distilled water with no additives of any kind.

Key Features:

• 325 mL tank: Holds 325 mL at the level Philips recommends, which is a full night for most users.
• One tank fits all: The same chamber serves every original DreamStation, both the CPAP models and the BiPAP models.
• Top shelf rated: Philips lists the tank as dishwasher safe on the top shelf, which is stated in the humidifier manual.
• Distilled water: Philips calls for room temperature distilled water only, and warns against additives of any kind.
• Molded fill line: A maximum line is molded into the tank, since overfilling can spill into the humidifier basin.
• Lifts straight out: A lever releases the lid and the tank comes forward, so the hose stays where it is.

This chamber suits anyone running an original DreamStation CPAP or BiPAP whose tank has clouded, cracked or started to hold a smell. It is the only water tank Philips makes for that humidifier, so there is no version to choose between.

Note: This tank fits the original DreamStation only. A DreamStation 2 uses a chamber of its own shape, and ordering by machine name alone is the usual way people get the wrong one.

Where the tank sits in a DreamStation

The DreamStation heated humidifier is a separate module that clips to the side of the therapy device and forms one continuous unit with it. The water tank is the removable part inside that module.

A lever releases the humidifier lid, and the tank slides forward and out without disconnecting the hose or moving the machine. Philips designed it that way so the tank can be emptied every morning without dismantling the setup.

Daily emptying, and why Philips insists

Standing water at room temperature grows mold and bacteria. The manual is direct about it, asking that you empty and clean the water tank daily to prevent mold and bacteria growth, which is a stronger instruction than the weekly wash most CPAP parts get.

The tank is rated for the top shelf of a dishwasher, which makes the weekly deeper clean straightforward. Philips also asks that the tank be inspected for wear, and replaced whenever it shows damage rather than on a fixed schedule.

Here's everything that comes in the box.

• Philips DreamStation heated humidifier water tank, 325 mL at the recommended level
• Molded maximum fill line