Feature 1SILICONE CUSHION: Double wall silicone cushion helps create an airtight sealing to maximize treatment efficiency, eliminate facial redness, pressure marks and irritation. 2FINE TUNING DEVICE: 24 gear adjustment, easy to operate with one hand, guarantee great airtightness and comfort. Soft and elastic headgear, fits tightly, help secure face guard. 3FITMENT: Helps CO2 discharge, reduce noise. Breathing machine face guard has strong adaptability, covers the mouth and nose, fit for Resmed Mirage Quattro. 4EASY INSTALLATION: Breathing machine facial cover is easy to connect and use, perfect replacement for the old or broken one, suitable for elderly and patient. 5MULTIPLE APPLICABLE PLACE: Light weight and in small size, easy to store and carry, can be easily put into your bag, perfect for home, hospital and health center.Item Type: Breathing Machine Face GuardMaterial: SiliconeType: Standard (for use with various non invasive breathing machine)Fitment: Fit for Resmed Mirage Quattro breathing machine .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Face Guard3 x Manual