By Amy Urban April 30, 2020 In Uncategorized CARE INSTRUCTIONS/EL CARE INSTRUCTIONS Always clean your face thoroughly with mild detergent before donning your PAP mask.Avoid putting pressure where the trays are connectedRemove upper tray first/insert lower tray firstClean your Harmony with either a mild detergent and brush or with an effervescent denture/retainer cleaner such as Retainer Brite.