Contains Oxymetazoline. Relief from a blocked nose. Easy to use. Waterless, no spills or refilling and does not influence humidity. 3 Scent strength levels. One scent pad lasts up to 8 hours. Soothing nightlight and silent operation. Ingredients Active Ingredient: Oxymetazoline Hydrochloride 0.05% w/v Other Ingredients: Sodium Citrate Dihydrate, Tyloxapol, Citric Acid Anhydrous, Chlorhexidine Digluconate, Menthol Benzalkonium Chloride, Camphor, Disodium Edetate, Eucalyptol, Sodium Hydroxide and Purified Water