Philips DreamStation 2 HH1544/01 Disposable Ultra-Fine Filter, 1 pack, Filter, CPAP machine, Blue, White, Blended Synthetic Fiber, DreamStation 2 CPAP, DreamStation 2 Auto CPAP, DreamStation 2 CPAP Advanced, DreamStation 2 Auto..., 1 pc(s) Philips DreamStation 2 HH1544/01 Disposable Ultra-Fine Filter, 1 pack. Product type: Filter, Device type: CPAP machine, Product color: Blue, White. Quantity per pack: 1 pc(s)