CARE INSTRUCTIONS/ELby Amy UrbanApril 30, 2020May 6, 2020 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. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.