US Patent 7108834 Device for producing negative ion fragrance

A device for producing negative ion fragrance includes a basic body and a negative ion producer. The basic body is formed with a volatilizing cavity in the center for receiving therein the neck of a fragrant essential oil bottle or a fragrant essential oil bottle. The negative ion producer is provided with a negative ion shooting unit extending in the volatilizing cavity of the basic body. Negative ion produced by the negative ion shooting unit is mixed with the fragrant essential oil in the volatizing cavity and then their mixed vapor is sent out for use, elevating effect in use of fragrant essential oil.