The LPV is a hygienic alternative to finger occlusion and helps patients that are off of the ventilator to speak. It uses a flap valve which opens during inhalation and remains closed during exhalation redirecting air to the vocal cords. The hub of the LPV sits right up next to the Tracheostomy Tube creating a "Low Profile" appearance. It will not protrude from the neck. The LPV can be used with any Blom Tracheostomy Tube.