Frequently Asked Questions (FAQs) FAQs for Product: ComfortGel Nasal Mask Cushions 1009048, 1009049, 1009050, 1009051 1. How long should a comfortgel mask last and also the flap cover before they need replacing? (Posted: 23rd July, 2009) Question & Answers for Product: ComfortGel Nasal Mask Cushions 1009048, 1009049, 1009050, 1009051 Q. How long should a comfortgel mask last and also the flap cover before they need replacing? (Posted: 23rd July, 2009) A. In our experience the masks last up to about 2 years. Gel Cushions seem to last about a year to 15 months, and the covers should be changed every 9 months to maintain sealability. Back to Top Submit A New Question Can't Find The Answer You're Looking For? Submit Your Question Below: Related Product:  ComfortGel Nasal Mask Cushions 1009048, 1009049, 1009050, 1009051 Your Question:  (Please enter One Question Only! You can ask as many questions as you like, but do not combine them into one post!) Your Reply Email Address:  Security Step:  Enter the text to the Left in the space below: [ CLOSE WINDOW ]