Noise: < 30DB Pressure Range: 4-30 cmH2O Material: Compound Material Type: Breathing Machine Dimensions: 290 * 196 * 134 mm Mask Size: S M L Work Mode: CPAP , S , S/T, T Validity: 5-10 Years Warranty: 1 Years Assurance Certificate: CE FDA ISO Screen Size: 3.5 inch Accessories: Mask , Humidifier , Carrying Case , Filter , SD Card , Power Cord