Ozone 7 April 2023 Ozone is a gas composed of three oxygen atoms. In nail care, ozone therapy is used to promote healing and improve blood circulation in the nail bed. It is also used to disinfect and purify the air in nail salons. Related Articles: 7 free! 10 free! 99 free! What is the ‘deal’ here?Glossary: TolueneThe 3-Free MythImproving Your Nail Salon Ventilation