Helps provide patients with the right fit and maintain airway patency, helping ensure patient safety and comfort. Shiley™ tracheostomy tube cuffless with inner cannula (CFS) is designed for general pulmonary hygiene and for use with spontaneously breathing patients. Shiley™ tracheostomy tube cuffless with inner cannula fenestrated (CFN) is designed for pulmonary hygiene and, when used in conjunction with the Shiley™ decannulation plug (DCP), directs breathing through the upper airway