Perfume or essential oil diffuser locket necklaces available at Countryside Gardens. Each necklace contains a felt pad ready for your favorite perfume or essential oil. History offers some strange claims about these necklaces including: Purification and disinfection of the air against all forms of virus, pathogens and bacteria. Sets the mood and impact for aromatherapy. A focus of energy and concentration of positive health aura. Tangible reduction of stress and anxiety and the spreading the sweet fragrance inside and outside the home.