Includes: In-Line Scavenging Circuit (including in-line vacuum controller), (3) Adapter Fittings and Sampling of Nasal Masks (Does Not Utilize a Reservoir Bag). AXESS single-use, lightweight and low-profile nitrous oxide/oxygen sedation nasal masks are designed to form fit confortably over the patients 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.