A digitally controlled, wearable or stationary chemical dispersal device using a pump and activity-based or environmental-based feedback monitoring is described. The system contains a liquid chemical reservoir which can be replaced or refilled for multi-use operation. Electronic controls are used to drive the pump's liquid or air flow rate periodically with user control features and/or monitored, embedded digital sensors. Feedback from the sensors monitoring either the activity of a wearer of the device or the local environment can be used to adjust the pump's flow rate automatically. In addition, user selectable operation mode via Bluetooth is also described.
