Use's step Explanation: ( seeing that the picture shows ) 1.Taking out the fragrant holy basil treasure pushes by on the fragrant holy basil treasure covering upwaring at the back with the finger , and Fang Ke opens the cover . 2.The protective coating to take the fragrant holy basil piece and tears out the fragrant holy basil ware is left ventilate membrane . 3.We should place inside the fragrant holy basil piece Yu Xiangxun ware. 4.Close down the cover. 5.Inserting the power supply , the small night light is bright , and simples fragrant holy basil of 1 a hour smell fills the air in Use space The fragrant holy basil piece efficacy : One , do you drive mosquito The Fragrant Holy Basil Piece Efficacy The principle