Abstract: A wearable air purifier includes at least one wearable component, a control unit, at least one speaker assembly and at least one negative ion generating component. The control unit is disposed inside the at least one wearable component. The at least one speaker assembly is disposed on the at least one wearable component and electrically connected to the control unit. The at least one negative ion generating component is disposed on the at least one wearable component and electrically connected to the control unit. The control unit provides high-voltage currents to the at least one negative ion generating component to enable the at least one negative ion generating component to emit negative ions by corona discharging, and the control unit further provides audio signals to the at least one speaker assembly to activate the at least one speaker assembly to generate sound.

Abstract: A wearable air purifier includes at least one wearable component, a control unit, at least one speaker assembly and at least one negative ion generating component. The control unit is disposed inside the at least one wearable component. The at least one speaker assembly is disposed on the at least one wearable component and electrically connected to the control unit. The at least one negative ion generating component is disposed on the at least one wearable component and electrically connected to the control unit. The control unit provides high-voltage currents to the at least one negative ion generating component to enable the at least one negative ion generating component to emit negative ions by corona discharging, and the control unit further provides audio signals to the at least one speaker assembly to activate the at least one speaker assembly to generate sound.

Abstract: A method for safeguarding a vehicle having a first image capturing device for capturing a first image, a second image capturing device for capturing a second image, and a position detector is disclosed. Based on the occurrence of alerting events along with positional information provided by the position detector, the disclosed method includes enabling the first image capturing device to capture the first image and the second image capturing device to capture the second image. The method further includes transmitting the captured first image, the captured second image, and the positional information to a pre-selected destination. The method also includes receiving a communication request asking for the first image, the second image, and the positional information and/or proactively initiating another communication request disregarding the occurrence of the alerting events.