Ona in a can! This aerosol can be sprayed into the air to neutralize odors. It can be used on its own or with an automatic dispenser, that releases a burst of Ona mist on a set timer for a complete 30-day period. ONA (Odor Neutralizing Agent) products are designed using scientific principles of molecular bonding. Two odors can offset one another when they combine to form a bond. ONA's active ingredients come from a blend of 32 essential oils and plant-derived compounds that bond with and neutralize a wide array of odors.