Full face CPAP masks cover more of your face to accommodate CPAP users who mostly breathe through their mouths by allowing the CPAP user to breathe through their nose and mouth. The full face CPAP mask style offers a wide range of benefits. For instance, using a full face CPAP mask can reduce that overwhelming feeling of high CPAP pressures or assist with the inspiratory / expiratory cycle of using a BiPAP device. iONMySleep.com offers a wide selection of full face CPAP masks as well as hybrid full face mask. If you are unsure which Full face CPAP mask is right for you, contact iONMySleep.com at 800.355.0540 today to speak with a sleep specialist.