2 pillow sizes to choose from for a proper fit. Comes with a washable diffuser. The F&P Brevida was designed to give you confidence in your CPAP or BiPAP therapy, and comfort to give you a well rested night’s sleep. The Brevida comes with adjustable headgear and the soft AirPillow Seal that forms a gentle “pillow” of air during therapy, adapting and curving to provide a custom fit. Brevida’s core components feature VisaBlue highlighting that make mask assembly and maintenance a snap.