Feature:1. SILICONE CUSHION: Double wall silicone cushion helps create an airtight sealing to maximize treatment efficiency, eliminate facial redness, pressure marks and irritation.2. FINE 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.3. FITMENT: Helps CO2 discharge, reduce noise. Breathing machine face guard has strong adaptability, covers the mouth and nose, fit for Resmed Mirage Quattro.4. EASY INSTALLATION: Breathing machine facial cover is easy to connect and use, perfect replacement for the old or broken one, suitable for elderly and patient.5. MULTIPLE 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.Specification:Item Type: Breathing Machine Face GuardMaterial: SiliconeType: Standard (for use with various non invasive breathing machine)Fitment: Fit for Resmed Mirage Quattro breathing machine.Package List:1 x Face Guard3 x Manual