At Nuwave CPAP, our mission is to help you live a longer, happier life through CPAP therapy. Experience the benefits of ultimate comfort with our cotton liners designed to create a barrier between your skin and the silicone interface of your Respironics Dreamwear full face mask. Say goodbye to sweating, water rainout irritation, tickly face from the rainout, and noisy air leaks with our highly breathable liners. Each package includes four CPAP liners for your convenience (mask not included), specifically compatible with Philips Respironics DreamWear Full Face CPAP Masks – Multi-fit. Make every night of CPAP therapy a dream come true. Mask liners can help to reduce skin irritation, redness, and pressure sores caused by the mask rubbing against the skin. It can also help to reduce the amount of noise that the mask makes when air leaks out, which can be especially important for people who share a bed with a partner.