Purchasing a mask can be one of the most difficult parts of the buying process. With our 30 day return policy, you can buy any CPAP mask, and if the style, size, or overall comfort are wrong, you can return the OPENED mask for 100% store credit 1 time within 6 months, or you can return any UNOPENED mask for 100% refund. You can use our worry-free program to help you find the best size and style of mask that will maximize the effectiveness of your sleep apnea therapy.