Philips DreamStation 2 Disposable Ultra-Fine Filter

This blue ultra-fine filter snaps onto your DreamStation 2's grey pollen filter and traps the finer particles the grey filter lets through, so the air you breathe all night has been through two layers instead of one. Philips recommends it if tobacco smoke or other small particles bother you.

Key features:

• Genuine Philips part: Philips made this filter for the DreamStation 2, and its manual asks for Philips filters as replacements.
• Choose your pack size: Packs of one, two, or six let you stock as far ahead as suits you, with six covering about half a year of nightly use.
• Snaps onto the pollen filter: Line up the arrows, press the two filters together, and they slide in as one piece once the water tank is out.
• A layer on top, never alone: It adds a finer layer over the grey pollen filter, which stays in the machine whenever it runs.