Air Defense is a gentle nasal decongestant spray that combines virus-fighting Homeopathics with a purified nano-engineered silver solution and a soothing Aloe Vera Extract. Use Air Defense for the temporary soothing relief of nasal congestion; dry, irritated nasal membranes associated with a cold; sinusitis; irritated/swollen sinus passages; and other upper respiratory congestion. It Enhances cleanse nasal passages and promote nasal and sinus drainage.