Omron Healthcare Singapore PTE Ltd. Manufactures High Volume Ultrasonic Nebulizer with Backlight Illumination. Omron Healthcare Singapore PTE Ltd. Manufactures all its products in accordance to the RoHS directive. RoHS directive refers to the restriction of the use of certain hazardous substances in electrical and electronic equipments. This High Volume Ultrasonic Nebulizer possesses a timer of 1 to 30 minutes. Continuous flow is possible up to 72 hours with medication bottle and long time Nebulization Kit. Omron Healthcare Singapore PTE Ltd. High volume Ultrasonic Nebulizer also has a large LCD display and features buzzer to alert of any errors or when time is completed.