The plug-in power supply is used, and the device can be turned on or off by one button, with a working indicator Whenever working for 2 hours, the equipment will automatically stop for 20 minutes, and then automatically continue to work without any noise Intelligent chip processing, release 20 million negative ions, deal with peculiar smell and air impurities, and work continuously to achieve the effect of purifying the air No need to replace any filter element, the device will automatically decompose and remove impurities, saving you excess consumption.Suitable for living room, kitchen, bedroom, children's room, bathroom, , garage, basement, office It cannot be disassembled and cleaned. You can only wipe the of the equipment to achieve cleanliness. The equipment works more and only advantages human health, and will not harm . Power supply: AC Control : push-button Application area: 41 (inclusive)-60 (inclusive) Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. size: 11.3 x 4cm Material:ABS colour:White Package Contents: 3 x Anion air purifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.