React Health Luna Mask Leak & Pressure Comfort Troubleshooting

Hello. This guide helps Luna G3 and Luna II CPAP users fix mask leaks and improve pressure comfort at home. Part 1: Mask Leaks on Luna CPAP Machines. Step 1: Review your leak data. The Luna G3 stores nightly leak data on the SD card. Use free OSCAR software to view your average leak rate. A leak rate consistently above 24 L/min warrants attention. Step 2: Check your mask cushion condition. Regardless of mask brand, cushion condition is the most common cause of leaks. Silicone cushions should be soft and pliable, not stiff or cracked. Replace cushions every 1 to 3 months. Your DME provider can supply replacement cushions covered by insurance. Step 3: Refit your mask each night. The Luna G3 and Luna II deliver auto-adjusting pressure, which means pressure can be higher some nights than others. A mask that sealed fine at lower pressures may leak when the machine ramps up to higher pressures. Refit the mask — slightly firmer than you normally would — on nights when you anticipate needing higher pressure, such as after drinking alcohol or when congested. Step 4: Try the Ramp feature to reduce early-night leaks. Some users experience leaks early in the night while adjusting their position. Using the ramp feature allows the machine to start at lower pressure, giving you time to settle into a comfortable position before full pressure begins. Part 2: Pressure Comfort on Luna Machines. Step 5: Enable EPR (Exhale Pressure Relief). EPR reduces pressure by 1, 2, or 3 cm H2O during exhalation. This makes breathing out feel more natural. Navigate to the Settings menu, find the Pressure Relief or EPR option, and set it to 1 or 2. Most users find EPR at level 2 provides the best comfort without affecting therapy effectiveness. Step 6: Adjust the ramp start pressure. If the initial pressure feels too strong even at the beginning of the ramp, lower the ramp start pressure in the settings. Ramp start pressure can typically be set between 4 and 8 cm H2O — start at the lowest comfortable level. Step 7: Contact your provider if pressure remains uncomfortable after adjustments. If you have tried EPR and ramp adjustments and still feel the pressure is too high, your prescription range may need updating. The Luna G3 stores enough data to inform your prescriber about your typical pressure needs. Still need help? Find a CPAP provider near you →