Lemon essential Oil is one of the highest selling essential oil that has versatile qualities. Its clean, refreshing energy is a stimulant to the nervous system. It is a powerful cleansing agent that purifies air and surfaces. It is often synonym to cleanliness. It counters wide range of viral and bacterial infections and increases activity of immune system with the production of white corpuscles that fight infection. In Japan, it is diffused through the air systems of offices and factories because it increases concentration and the ability to memorize and noticeably reduces mistakes.