The Oracle 452 is an oral mask - NOT an oral appliance. It is designed to float in the mouth and is retained in position by two silicone components that form a pressure seal against the inner and outer cheek.

Convenient & Simple Design: Simple to use and convenient to wear, the Oracle 452 has a low profile design great for people who wear glasses or like to read and watch TV in bed. Minimal facial contact makes the Oracle 452 virtually leak free, no nasal or forehead contact required at all!

SoftSeal Mouthpiece & SnapFlap Cover: The SoftSeal Mouthpiece for Oracle 452 comfortable floats in the mouth to help eliminate skin abrasions and pressure points. The SoftSeal works in conjunction with the SnapFlap Cover to provide a simple and superior seal with maximum comfort. Each Oracle Mask comes with two Silicone SoftSeals - small or large - so that you can ensure your best fit. The Oracle is simple and convenient and can even be worn with most dentures.

Rotating Adjustment Dial & FlexiTube: The Rotating Adjustment Dial included with the Oracle is infinitely adjustable to provide greater comfort and simple personalized fitting. The mask's FlexiTube tubing can be rotated 360° so you can position it up, down, or two the side.

Headgear for Optional Use Included Too!:Because the Oracle is such an easy mask to wear many people prefer to use it without headgear; however lightweight, minimalist Single Strap Breath-O-Prene Headgear is included in each package so that you can choose to use it or not depending on your preference. Single Strap headgear is highly adjustable for a personalized fit and provides a clear field of vision and freedom of movement.

Usage Information: The Oracle 452 should only be used on a CPAP/BiPAP machine that includes heated humidification. Oracle is NOT recommended for use by people without teeth or dentures that can be kept in throughout the night.