... :This product is a kind of high efficient open anion generator, and it adopts high voltage inverter, SCR suspension type discharge ... spread of disease.4, eliminate the car smoke, peculiar smellNegative ion can promote metabolism, keep the air clean, eliminate fatigue, always ... mg/H (adjustable)Quantity: 0.8-1.5 million negative ion a/CM3 (adjustable) Ozone generator