New Factory Sealed 12 Month Filter Kit for the Philips Respironics DreamStation-ONE CPAP BIPAP  2-Reusable (2 1-packs) & 12-Disposable (6 2-packs). 2 packs and 1-packs keep your filters sealed and fresh longer. We are a Board of Pharmacy Licensed Medical and Respiratory Supply Reseller. Will NOT work with Dreamstation 2. Filters are made by Spirit, a trusted USA company.