Welcome to CPAP Guys! We are your source for CPAP mask supplies, accessories, and more. We carry a full range of CPAP machines including the great S9, one of the most user friendly CPAP humidifiers on the market. We understand the complexities that come with CPAP, that's why we offer insurance on any of our CPAP masks. For only $34.99, you have the option of buying any of our CPAP nasal masks, trying it on, and then returning it if it doesn't fit. Typically, when you buy a CPAP mask, if it's opened, you violate the warranty, since nobody wants to buy used CPAP equipment, but our insurance program makes it affordable, and ensures you get the best CPAP supplies to make your life more comfortable and enjoyable.