Happy Noz Organic Onion Sticker PM 2.5 is stick-on mess free nose refreshener to help relieve colds, allergies and nasal congestion. It's main ingredient is onion which is a powerful all-natural catalyst to help relieve nasal congestion. It has added clove oil a powerful anti-oxidantto help relieve the stuffiness caused by smoke, ashes and pollution. Recommended for exposure to smoke, ash and pollution. Comes in 4pcs per box.