Mute Large - 3 pack (30 Night Supply). Mute is a nasal breathing device designed to increase airflow through your nose during sleep by gently opening your airways. By breathing more freely through the nose, Mute may reduce the effects of night-time nasal congestion and may reduce snoring. Mute fits discreetly in the nose. Worn inside the nose, Mute has two soft paddles that gently expand your airways to increase airflow during sleep. You can adjust each paddle, using the patented dilation system, to achieve the perfect fit in each nostril.