Ona does not simply mask smells or cover them with a stronger smell but actually removes them by absorbing and dissolving the offending particles. Ona odor neutralising agent is a blend of 32 essential oils specifically chosen for their ability to neutralise a very wide range of malodorous molecules. It can control and eliminate organic and non organic odors in a wide variety of situations. The smell of pets, plants, smoke, rubbish, germs and mildew will all be removed by Ona.