According to the official report of Query One Daily, Happiness College has been committed to spreading effective aromatherapy and establishing a health care center between families and hospitals. The three-day training will systematically learn the source, utility and usage of plant essential oil. Certificate issuance: The World Federation of Chinese Medicine Societies, the official cooperation agency of the World Health Organization, issued the certificate of special skills of Chinese medicine (certificate of completion of plant essential oil therapy training). The international third-party authoritative certification group-TUV certification of Rheinland, Germany-professional research certification certificate of plant essential oil therapy (English version).