Men with sleep apnea can create the perfect seal for their facial hair with the CPAP Beard & Mustache Sealing System. CPAP Sealant: Stroke a generous amount of CPAP Beard Sealant onto the beard or mustache where the CPAP interface contacts the face and comb through. CPAP Shampoo & Conditioner: The shampoo and conditioner restores, softens, and rejuvenates coarse facial hair with each use to create a very soft, seal-able beard, according to the manufacturer.