AXESSâ„¢ single-use, lightweight and low-profile nitrous oxide/oxygen sedation nasal masks are designed to form fit confortably over the patient's nose and provide the clinician with easy and unobstructed access to the oral cavity. Available in 3 sizes (small, medium, and large); each size is available in bubblegum and mint scents and unscented; 24 nasal masks per box. Reusable steam-sterilizable scavenging circuits sold separately.- Scavenging Circuit for In-Line Vacuum Controller, Includes: RFS Scavenging Circuit, (3) Adapter Fittings and (6) Nasal Masks (Does Not Utilize a Reservoir Bag) 14-21 Days