Reduces Airborne Bacteria & Odours 24x7 Instantaneous and Effective Air Purge. Works with infrared ray coding technology. latest design for all kinds of public or commercial use. Durable & Economical. Power switch display-by LED light. Time-interval of spraying. 5-30 Minutes. PP Material can be recycled. Two "D" Batteries lasts for 5 months. Locking System. Comes with 250 & 300ml Aerosol cans. Eco friendly.