Tracheostomy Mask are devices that are utilized to deliver oxygen to tracheotomy patients ,it is worn around the neck over the tracheostomy tubeThe mask is made of transparent soft PVC for good visualization, the neckband is made from comfortable, on-biting material: The swivel tubing connector permits access from either side of the patient; the mask connector can rotate 360°,there is a hole at the top for expiration and suction.Greatcare Tracheotomy mask is CE and FDA certified.